Problem. 1 - Junior Julian
模拟模拟模拟摸死 CTR 的母。
考场代码：
#include<cstdio>
namespace solveIt
{
void read(int &x)
{
x=0;
char c=getchar();
int f=1;
while(c<'0'||c>'9')
{
if(c=='-') f=-1;
c=getchar();
}
while(c>='0'&&c<='9')
{
x=(x<<3)+(x<<1)+(c^'0');
c=getchar();
}
x*=f;
}
void write(int x)
{
if(x<0)
{
putchar('-');
x=-x;
}
if(x>9) write(x/10);
putchar(x%10+'0');
}
int Q;
int chkyearG(int mon) // 1:run 0:ping
{
if(((mon%4==0)&&(mon%100!=0))||(mon%400==0)) return 1;
else return 0;
}
int chkyearJ(int mon) // 1:run 0:ping
{
if(mon%4==0) return 1;
else return 0;
}
int chkmontG(int mon,int yea) // 31: big,30: small,28/29: 2
{
if(yea<0) yea=-yea,yea--;
if(mon==1||mon==3||mon==5||mon==7||mon==8||mon==10||mon==12) return 31;
else if(mon!=2) return 30;
else
{
if(chkyearG(yea)) return 29;
else return 28;
}
}
int chkmontJ(int mon,int yea) // 31: big,30: small,28/29: 2
{
if(yea<0) yea=-yea,yea--;
if(mon==1||mon==3||mon==5||mon==7||mon==8||mon==10||mon==12) return 31;
else if(mon!=2) return 30;
else
{
if(chkyearJ(yea)) return 29;
else return 28;
}
}
void Main()
{
read(Q);
while(Q--)
{
int r;
read(r);
int days=1,months=1,years=-4713;
int flag=0; // 0:Julian,1:Gregorian
while(true)
{
if(years==0) years=1;
if(days==1&&months==10&&years==1582)
{
if(r<=3)
{
days+=r;
break;
}
else if(r>3&&r<20)
{
days+=3;
r-=3;
days=15;
days+=r;
break;
}
else
{
flag=1;
days=1;
r-=21;
months++;
}
}
if(days+r<=(flag?chkmontG(months,years):chkmontJ(months,years)))
{
days+=r;
break;
}
days=1;
r-=(flag?chkmontG(months,years):chkmontJ(months,years));
months++;
if(months==13) months=1,years++;
}
if(years>0) printf("%d %d %d\n",days,months,years);
else printf("%d %d %d BC\n",days,months,-years);
}
}
}
int main()
{
// freopen("D:/csp-s(windows)/julian/julian3.in","r",stdin);
// freopen("D:/my.out","w",stdout);
freopen("julian.in","r",stdin);
freopen("julian.out","w",stdout);
solveIt::Main();
return 0;
}
/*
There are 365 days in a ping year.
There are 366 days in a run year.
There are 4714 ping years in -4713(BC) to 1582
There are 1582 run years in -4713(BC) to 1582
There are 2299622 days in -4713(BC) to 1582
There are 3571 ping years BC
There are 1142 yun years BC
There are 1721387 days in BC
*/
下来重写：
#include <cstdio>
typedef long long LL;
template<typename _T>
void read( _T &x ){
x = 0; char c = getchar( ); _T f = 1;
while( c < '0' || c > '9' ){ if( c == '-' ) f = -1; c = getchar( ); }
while( c >= '0' && c <= '9' ){ x = ( x << 3 ) + ( x << 1 ) + ( c & 15 ); c = getchar(); }
x *= f;
}
template<typename _T>
void write( _T x ){
if( x < 0 ){ putchar( '-' ); x = -x; }
if( x > 9 ) write( x / 10 );
putchar( x % 10 + '0' );
}
int MonthDays( int x ){
if( x == 1 || x == 3 || x == 5 || x == 7 || x == 8 || x == 10 || x == 12 ) return 31;
else if( x == 2 ) return 28;
else return 30;
}
bool checkRJ( int x ){ return ! ( x % 4 ); }
bool checkRG( int x ){ return ( ( ! ( x % 4 ) ) && ( x % 100 ) ) || ( ! ( x % 400 ) ); }
int Q;
void GetData( LL& dBC, LL& dAJ, LL& dAG, LL& dFK ){
for( int i = 4712; ~ i; -- i ) dBC += 365 + checkRJ( i );
dAJ = dBC; dAG = dBC;
for( int i = 1; i <= 1581; ++ i ) dAJ += 365 + checkRJ( i );
for( int i = 1; i <= 1582; ++ i ) dAG += 365 + checkRG( i );
dFK = dAJ + 365;
for( int i = 1; i <= 9; ++ i ) dAJ += MonthDays( i );
dAJ += 4;
}
int fuckCTR( int x, int y ){
if( y < 0 ) ++ y;
if( x != 2 ) return MonthDays( x );
if( y <= 1582 ) return MonthDays( x ) + checkRJ( y );
else return MonthDays( x ) + checkRG( y );
}
int main( ){
LL dBC = 0, dAJ = 0, dAG = 0, dFK = 0;
/*
* several key time frame:
* 4713.1.1
* 1582.10.5~14 ( don't exist )
* 1582.10.4 Julian Calendar has been fucked
* 1582.10.15 Gregorian Calendar has been implemented
* dBC - 1.1.1 (Julian Day)
* dAJ - 1582.10.15 (Julian Day)
* dFK - 1583.1.1 (Imagine that the fucking 10 days exist)
* dAG - 1583.1.1 (the fucking 10 days don't exist(the fucking problem's description))
*/
GetData( dBC, dAJ, dAG, dFK );
read( Q ); while( Q -- > 0 ){
LL R; read( R );
if( R < dBC ){
int years = 4713 - R / ( 365 * 4 + 1 ) * 4; R %= ( 365 * 4 + 1 );
if( R >= 366 ){
R -= 366; years --;
if( R >= 365 ){ R -= 365; years --; }
if( R >= 365 ){ R -= 365; years --; }
}
int months = 1;
while( R - fuckCTR( months, -years ) >= 0 ){ R -= fuckCTR( months, -years ); months ++; }
int days = R + 1;
printf( "%d %d %d BC\n", days, months, years );
continue;
}
if( R >= dAJ ) R += 10;
if( R >= dBC && R < dFK ){
R -= dBC;
int years = R / ( 365 * 4 + 1 ) * 4 + 1; R %= ( 365 * 4 + 1 );
if( R >= 365 ){ R -= 365; years ++; }
if( R >= 365 ){ R -= 365; years ++; }
if( R >= 365 ){ R -= 365; years ++; }
int months = 1;
while( R - fuckCTR( months, years ) >= 0 ){ R -= fuckCTR( months, years ); months ++; }
int days = R + 1;
printf( "%d %d %d\n", days, months, years );
continue;
}
if( R >= dFK ){
R -= dBC; R += dAG - dFK;
int years = R / ( 365 * 400 + 24 * 4 + 1 ) * 400 + 1; R %= ( 365 * 400 + 24 * 4 + 1 );
if( R >= 365 * 100 + 24 ){ R -= 365 * 100 + 24; years += 100; }
if( R >= 365 * 100 + 24 ){ R -= 365 * 100 + 24; years += 100; }
if( R >= 365 * 100 + 24 ){ R -= 365 * 100 + 24; years += 100; }
years += R / ( 365 * 4 + 1 ) * 4; R %= ( 365 * 4 + 1 );
if( R >= 365 ){ R -= 365; years ++; }
if( R >= 365 ){ R -= 365; years ++; }
if( R >= 365 ){ R -= 365; years ++; }
int months = 1;
while( R - fuckCTR( months, years ) >= 0 ){ R -= fuckCTR( months, years ); months ++; }
int days = R + 1;
printf( "%d %d %d\n", days, months, years );
}
}
return 0;
}
码风飞跃的变化
Problem. 2 - Junior Zoo
把所有数或起来，然后计算需要买哪些饲料，然后统计 $1\texttt{ to }k$ 有哪些位没有被买，记为 $C$ 然后答案就是 $2^{C}-n$。
考场代码：
#include<cstdio>
#include<vector>
namespace solveIt
{
void read(int &x)
{
x=0;
char c=getchar();
int f=1;
while(c<'0'||c>'9')
{
if(c=='-') f=-1;
c=getchar();
}
while(c>='0'&&c<='9')
{
x=(x<<3)+(x<<1)+(c^'0');
c=getchar();
}
x*=f;
}
void write(int x)
{
if(x<0)
{
putchar('-');
x=-x;
}
if(x>9) write(x/10);
putchar(x%10+'0');
}
const int MAXN=1e6+5;
int n,m,c,k,a[MAXN],vis[MAXN],fuc[MAXN];
struct ask
{
int w,s;
ask(int W=0,int S=0){w=W;s=S;}
}as[MAXN];
void Main()
{
read(n),read(m),read(c),read(k);
for(int i=1;i<=n;++i) read(a[i]),fuc[a[i]]=1;
for(int i=1;i<=m;++i) read(as[i].w),read(as[i].s);
for(int i=1;i<=n;++i)
{
for(int j=1;j<=m;++j)
{
// printf("FU ");for(int i=1;i<=c;++i) printf("%d ",vis[i]); puts("");
if((a[i]>>as[j].w)&1) vis[as[j].s]=1;//,printf("%d %d %d\n",a[i],as[j].w,as[j].s);
}
}
// for(int i=1;i<=c;++i) write(vis[i]),putchar(' '),write(i),putchar('\n');
int up=(1<<k),ans=0;
for(int s=0;s<up;++s)
{
if(fuc[s]) continue;
bool flag=0,book=0;
for(int i=1;i<=m;++i)
{
if((s>>as[i].w)&1)
{
flag=1;
if(!vis[as[i].s]) book=1;
}
if(book) break;
}
if(!flag) ans++;
else if(!book) ans++;
}
write(ans);
}
}
int main()
{
freopen("zoo.in","r",stdin);
freopen("zoo.out","w",stdout);
solveIt::Main();
return 0;
}
下来改的：
#include<cstdio>
#include<algorithm>
using namespace std;
namespace solveIt
{
typedef unsigned long long ULL;
void read(int &x)
{
x=0;
char c=getchar();
int f=1;
while(c<'0'||c>'9')
{
if(c=='-') f=-1;
c=getchar();
}
while(c>='0'&&c<='9')
{
x=(x<<3)+(x<<1)+(c^'0');
c=getchar();
}
x*=f;
}
void readull(ULL &x)
{
x=0;
char c=getchar();
ULL f=1;
while(c<'0'||c>'9')
{
if(c=='-') f=-1;
c=getchar();
}
while(c>='0'&&c<='9')
{
x=(x<<3)+(x<<1)+(c^'0');
c=getchar();
}
x*=f;
}
void write(int x)
{
if(x<0)
{
putchar('-');
x=-x;
}
if(x>9) write(x/10);
putchar(x%10+'0');
}
void writeull(ULL x)
{
if(x<0)
{
putchar('-');
x=-x;
}
if(x>9) writeull(x/10);
putchar(x%10+'0');
}
const int MAXN=1e6+5;
int n,m,c,k,len;
ULL a[MAXN],all,pri[MAXN];
bool fuc[70],buc[MAXN];
struct ask
{
int w,s;
ask(int W=0,int S=0){w=W;s=S;}
}as[MAXN];
void Main()
{
read(n),read(m),read(c),read(k);
for(int i=1;i<=n;++i)
{
readull(a[i]);
all|=a[i];
}
for(int i=1;i<=m;++i)
{
read(as[i].w);
read(as[i].s);
pri[i]=as[i].s;
}
sort(pri+1,pri+1+m);
len=unique(pri+1,pri+1+m)-pri-1;
for(int i=1;i<=m;++i) as[i].s=lower_bound(pri+1,pri+1+len,as[i].s)-pri;
for(int i=1;i<=m;++i)
{
if((all>>as[i].w)&1) buc[as[i].s]=1;
}
for(int i=1;i<=m;++i)
{
if(!buc[as[i].s]) fuc[as[i].w]=1;
}
int tot=0;
for(int i=0;i<k;++i)
{
if(!fuc[i]) ++tot;
}
if(tot==64)
{
if(n==0) puts("18446744073709551616");
else
{
ULL ans=0,two=1;
for(int i=1;i<=63;++i) two<<=1;
ans+=two;
ans-=n;
ans+=two;
writeull(ans);
}
}
else writeull((1ull<<tot)-n);
}
}
int main()
{
// freopen("zoo.in","r",stdin);
// freopen("zoo.out","w",stdout);
solveIt::Main();
return 0;
}
Problem. 3 - Senior Call
这儿
考场代码： （Loneliness）
下来改的：
#include <queue>
#include <cstdio>
#define mod ( 998244353 )
using namespace std;
typedef long long LL;
const int MAXN = 1e6 + 5;
template<typename _T>
void read( _T &x ){
x = 0; char c = getchar(); _T f = 1;
while( c < '0' || c > '9' ){ if( c == '-' ) f = -1; c = getchar(); }
while( c >= '0' && c <= '9' ){ x = ( x << 3 ) + ( x << 1 ) + ( c & 15 ); c = getchar(); }
x *= f;
}
template<typename _T>
void write( _T x ){
if( x < 0 ){ putchar( '-' ); x = -x; }
if( x > 9 ) write( x / 10 );
putchar( x % 10 + '0' );
}
struct starS{
int to, nxt;
starS( int T = 0, int N = 0 ){ to = T; nxt = N; }
} as[MAXN * 2];
struct operateS{
int Tp, pos;
LL add, mul, sum;
operateS( int T = 0, int P = 0, LL A = 0, LL M = 0, LL S = 0 ){ Tp = T; pos = P; add = A; mul = M; sum = S; }
} opS[MAXN];
int N, M, Q;
int totE, totT;
int A[MAXN], topS[MAXN], degS[MAXN], firS[MAXN], queS[MAXN];
void pushEdge( int u, int v ){ as[++ totE] = starS( v, firS[u] ); firS[u] = totE; }
void TopSort( ){
queue<int> align;
for( int i = 1; i <= M; ++ i ){
if( ! degS[i] ) align.push( i );
}
while( ! align.empty( ) ){
int u = align.front( ); align.pop( );
topS[++ totT] = u;
for( int i = firS[u]; i; i = as[i].nxt ){
int v = as[i].to; degS[v] --;
if( ! degS[v] ) align.push( v );
}
}
}
int main( ){
read( N );
for( int i = 1; i <= N; ++ i ) read( A[i] );
read( M );
for( int i = 1; i <= M; ++ i ){
read( opS[i].Tp );
if( opS[i].Tp == 1 ){
read( opS[i].pos ); read( opS[i].add );
opS[i].mul = 1;
}
else if( opS[i].Tp == 2 ) {
read( opS[i].mul );
opS[i].add = opS[i].mul;
}
else{
read( opS[i].pos );
opS[i].mul = 1;
for( int j = 1, to; j <= opS[i].pos; ++ j ){ read( to ); pushEdge( i, to ); degS[to] ++; }
}
}
TopSort( );
for( int i = M; i; -- i ){
int u = topS[i];
for( int j = firS[u]; j; j = as[j].nxt ){
int v = as[j].to;
opS[u].mul = ( LL )opS[u].mul * opS[v].mul % mod;
}
}
read( Q ); int now = 1;
for( int i = 1; i <= Q; ++ i ) read( queS[i] );
for( int i = Q; i; -- i ){ opS[queS[i]].sum = ( ( LL )opS[queS[i]].sum + now ) % mod; now = ( LL )now * opS[queS[i]].mul % mod; }
for( int i = 1; i <= M; ++ i ){
int u = topS[i], now = 1;
for( int j = firS[u]; j; j = as[j].nxt ){
int v = as[j].to;
opS[v].sum = ( ( LL )opS[u].sum * now % mod + opS[v].sum ) % mod;
now = ( LL )now * opS[v].mul % mod;
}
}
for( int i = 1; i <= N; ++ i ) A[i] = ( LL )A[i] * now % mod;
for( int i = 1; i <= M; ++ i ){
if( opS[i].Tp == 1 ) A[opS[i].pos] = ( A[opS[i].pos] + ( LL )opS[i].add * opS[i].sum % mod ) % mod;
}
for( int i = 1; i <= N; ++ i ) write( A[i] ), putchar( ' ' );
return 0;
}
Problem. 4 - Senior Snakes
先讲个 $\texttt{70pts}$ 的做法。没脑子吃，然后回来判断。所有大样例有些多一的代码改一下就有。
正解应该就是利用序列单调性把 $\texttt{70pts}$ 的暴力的线段树改成其他的东西。
目前还没做出来，可以欣赏一下我考场的 186 行 SGST（含义见代码）。
考场代码：
（upd：这份代码下面是 $\texttt{70pts}$ 的代码：）
#include<cstdio>
#include<algorithm>
using namespace std;
namespace solveIt
{
void read(int &x)
{
x=0;
char c=getchar();
int f=1;
while(c<'0'||c>'9')
{
if(c=='-') f=-1;
c=getchar();
}
while(c>='0'&&c<='9')
{
x=(x<<3)+(x<<1)+(c^'0');
c=getchar();
}
x*=f;
}
void write(int x)
{
if(x<0)
{
putchar('-');
x=-x;
}
if(x>9) write(x/10);
putchar(x%10+'0');
}
struct node
{
int val,pos;
node(int V=0,int P=0)
{
val=V;
pos=P;
}
bool operator<(const node&ano)const
{
if(val==ano.val) return pos<ano.pos;
else return val<ano.val;
}
};
const int MAXN=1e6+6;
int n,a[MAXN];
struct TREE
{
node mnx[MAXN*4],mxx[MAXN*4];
void upd(int x)
{
mnx[x]=min(mnx[x<<1],mnx[x<<1|1]);
mxx[x]=max(mxx[x<<1],mxx[x<<1|1]);
}
void build(int x,int l,int r)
{
if(l^r)
{
int mid=(l+r)>>1;
build(x<<1,l,mid);
build(x<<1|1,mid+1,r);
upd(x);
}
else
{
mnx[x]=node(a[l],l);
mxx[x]=node(a[l],l);
}
}
void ins(int x,int l,int r,int pos,int val)
{
if(l^r)
{
int mid=(l+r)>>1;
if(mid>=pos) ins(x<<1,l,mid,pos,val);
else ins(x<<1|1,mid+1,r,pos,val);
upd(x);
}
else
{
mnx[x].val+=val;
mxx[x].val+=val;
}
}
node findmin(int x,int l,int r,int fr,int ba)
{
if(l>ba||r<fr) return 1e9;
if(l>=fr&&r<=ba) return mnx[x];
else
{
int mid=(l+r)>>1;
return min(findmin(x<<1,l,mid,fr,ba),findmin(x<<1|1,mid+1,r,fr,ba));
}
}
node findmax(int x,int l,int r,int fr,int ba)
{
if(l>ba||r<fr) return 0;
if(l>=fr&&r<=ba) return mxx[x];
else
{
int mid=(l+r)>>1;
return max(findmax(x<<1,l,mid,fr,ba),findmax(x<<1|1,mid+1,r,fr,ba));
}
}
} tmx,tmn;
void Main()
{
int t;
read(t);
int flag=1;
while(t--)
{
read(n);
if(flag==1)
{
for(int i=1;i<=n;++i) read(a[i]);
flag=0;
}
else
{
for(int i=1,p,v;i<=n;++i)
{
read(p);
read(v);
int tmxv=tmx.findmax(1,1,n,p,p).val;
int tmnv=tmn.findmin(1,1,n,p,p).val;
tmx.ins(1,1,n,p,-tmxv);
tmx.ins(1,1,n,p,v);
tmn.ins(1,1,n,p,-tmnv);
tmn.ins(1,1,n,p,v);
}
for(int i=1;i<=n;++i) a[i]=tmx.findmax(1,1,n,i,i).val;
// for(int i=1;i<=n;++i) write(a[i]),putchar(' '); puts("");
}
tmx.build(1,1,n);
tmn.build(1,1,n);
int ans=n;
while(true)
{
node nowmax=tmx.findmax(1,1,n,1,n);
tmx.ins(1,1,n,nowmax.pos,-nowmax.val);
node secmax=tmx.findmax(1,1,n,1,n);
tmx.ins(1,1,n,nowmax.pos,nowmax.val);
node nowmin=tmn.findmin(1,1,n,1,n);
tmn.ins(1,1,n,nowmin.pos,-nowmin.val+1e9);
node secmin=tmn.findmin(1,1,n,1,n);
tmn.ins(1,1,n,nowmin.pos,nowmin.val-1e9);
// printf("nmx=(%d %d),nmn=(%d %d),smx=(%d %d),smn(%d %d)\n",nowmax.pos,nowmax.val,
// nowmin.pos,nowmin.val,secmax.pos,secmax.val,secmin.pos,secmin.val);
if(((nowmax.val-nowmin.val<secmin.val)
&&((nowmax.val-nowmin.val>secmax.val)
||(nowmax.val-nowmin.val==secmax.val&&nowmax.pos>secmax.pos)))
||(((nowmax.val-nowmin.val==secmin.val)&&(nowmax.pos<secmin.val))
&&((nowmax.val-nowmin.val>secmax.val)
||((nowmax.val-nowmin.val==secmax.val)&&(nowmax.pos>secmax.pos))))
||(nowmax.val-nowmin.val>secmin.val)
||((nowmax.val-nowmin.val==secmin.val)&&(nowmax.pos>secmin.pos)))
{
tmn.ins(1,1,n,nowmax.pos,-nowmin.val);
tmn.ins(1,1,n,nowmin.pos,-nowmin.val+1e9);
tmx.ins(1,1,n,nowmax.pos,-nowmin.val);
tmx.ins(1,1,n,nowmin.pos,-nowmin.val);
ans--;
}
else break;
}
write(ans);
putchar('\n');
}
}
}
int main()
{
// freopen("D:/csp-s(windows)/snakes/snakes3.in","r",stdin);
freopen("snakes.in","r",stdin);
freopen("snakes.out","w",stdout);
solveIt::Main();
return 0;
}
/*
SGST - Strong-Guy Segment Tree
*/
$\texttt{70pts}$
#include<cstdio>
#include<algorithm>
using namespace std;
namespace solveIt
{
void read(int &x)
{
x=0;
char c=getchar();
int f=1;
while(c<'0'||c>'9')
{
if(c=='-') f=-1;
c=getchar();
}
while(c>='0'&&c<='9')
{
x=(x<<3)+(x<<1)+(c^'0');
c=getchar();
}
x*=f;
}
void write(int x)
{
if(x<0)
{
putchar('-');
x=-x;
}
if(x>9) write(x/10);
putchar(x%10+'0');
}
struct node
{
int val,pos;
node(int V=0,int P=0)
{
val=V;
pos=P;
}
bool operator<(const node&ano)const
{
if(val==ano.val) return pos<ano.pos;
else return val<ano.val;
}
};
const int MAXN=1e6+6;
int n,ans,a[MAXN];
struct TREE
{
node mnx[MAXN*4],mxx[MAXN*4];
int siz,tp;
TREE()
{
siz=0;
}
void upd(int x)
{
mnx[x]=min(mnx[x<<1],mnx[x<<1|1]);
mxx[x]=max(mxx[x<<1],mxx[x<<1|1]);
}
void build(int x,int l,int r)
{
if(l^r)
{
int mid=(l+r)>>1;
build(x<<1,l,mid);
build(x<<1|1,mid+1,r);
upd(x);
}
else
{
mnx[x]=node(a[l],l);
mxx[x]=node(a[l],l);
}
}
void ins(int x,int l,int r,int pos,int val)
{
if(l^r)
{
int mid=(l+r)>>1;
if(mid>=pos) ins(x<<1,l,mid,pos,val);
else ins(x<<1|1,mid+1,r,pos,val);
upd(x);
}
else
{
mnx[x].val+=val;
mxx[x].val+=val;
}
}
node findmin(int x,int l,int r,int fr,int ba)
{
if(l>ba||r<fr) return 1e9;
if(l>=fr&&r<=ba) return mnx[x];
else
{
int mid=(l+r)>>1;
return min(findmin(x<<1,l,mid,fr,ba),findmin(x<<1|1,mid+1,r,fr,ba));
}
}
node findmax(int x,int l,int r,int fr,int ba)
{
if(l>ba||r<fr) return 0;
if(l>=fr&&r<=ba) return mxx[x];
else
{
int mid=(l+r)>>1;
return max(findmax(x<<1,l,mid,fr,ba),findmax(x<<1|1,mid+1,r,fr,ba));
}
}
void del(node one)
{
if(tp==1) ins(1,1,n,one.pos,-one.val);
else ins(1,1,n,one.pos,-one.val+1e9);
siz--;
}
void buildemp(int f,int n)
{
build(1,1,n);
siz=n;
tp=f;
}
};
struct treetoheap
{
TREE tmx,tmn;
node findmax(int l,int r)
{
return tmx.findmax(1,1,n,l,r);
}
node findmin(int l,int r)
{
return tmn.findmin(1,1,n,l,r);
}
void ins(node one)
{
tmx.siz++;
tmn.siz++;
tmx.ins(1,1,n,one.pos,one.val);
if(tmn.findmin(1,1,n,one.pos,one.pos).val==(int)1e9) tmn.ins(1,1,n,one.pos,one.val-1e9);
else tmn.ins(1,1,n,one.pos,one.val);
}
void del(node one)
{
tmx.del(one);
tmn.del(one);
}
void buildemp(int n)
{
tmx.buildemp(1,n);
tmn.buildemp(0,n);
}
int siz()
{
return tmx.siz;
}
} wer;
bool dfs()
{
if(wer.siz()==2) return 1;
int f=0;
while(wer.siz()>=3)
{
int siz=wer.siz();
node nowmin=wer.findmin(1,n),nowmax=wer.findmax(1,n);
wer.del(nowmin);
wer.del(nowmax);
node secmin=wer.findmin(1,n);
wer.ins(node(nowmax.val-nowmin.val,nowmax.pos));
// puts("\n/********************************************/");
// printf("(%d %d %d)\n",secmin.val,secmin.pos,wer.siz());
// for(int i=1;i<=n;++i) printf("%d ",wer.findmax(i,i).val);puts("");
// puts("/********************************************/\n");
if(nowmax.val-nowmin.val<secmin.val)
{
if(!dfs())
{
ans=siz-1;
return 1;
}
else if(f)
{
ans=siz;
return 1;
}
else
{
ans=siz;
return 0;
}
}
++f;
}
ans=1;
return 1;
}
void Main()
{
int t;
read(t);
int flag=1;
while(t--)
{
if(flag==1)
{
read(n);
for(int i=1;i<=n;++i) read(a[i]);
flag=0;
}
else
{
int tmp;
read(tmp);
for(int i=1,p,v;i<=tmp;++i)
{
read(p);
read(v);
a[p]=v;
}
}
if(n==3)
{
if(a[1]+a[2]<=a[3]) puts("1");
else puts("3");
continue;
}
wer.buildemp(n);
ans=n;
bool WASTED=dfs();
write(ans);
putchar('\n');
WASTED=!WASTED;
}
}
}
int main()
{
// freopen("snakes/snakes4.in","r",stdin);
// freopen("snakes/fuck.out","w",stdout);
// freopen("snakes.in","r",stdin);
// freopen("snakes.out","w",stdout);
solveIt::Main();
return 0;
}
/*
SGST - Strong-Guy Segment Tree
*/