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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#790743 | #7787. Maximum Rating | zhilin# | WA | 2ms | 11872kb | C++14 | 2.0kb | 2024-11-28 15:06:52 | 2024-11-28 15:06:54 |
Judging History
answer
#include<bits/stdc++.h>
#define ls(x) T[x][0]
#define rs(x) T[x][1]
#define maxn 1000005
using namespace std;
long long qread(){
long long s=0,fu=1;
char ch=getchar();
while(!isdigit(ch)){
if(ch=='-')fu=-1;
ch=getchar();
}
while(isdigit(ch)){
s=(s<<1)+(s<<3)+ch-'0';
ch=getchar();
}
return s*fu;
}
long long val[maxn],pri[maxn],siz[maxn],sum[maxn];
int T[maxn][2];
int tot;
void pushup(int x){
siz[x]=siz[ls(x)]+siz[rs(x)]+1;
sum[x]=sum[ls(x)]+sum[rs(x)]+val[x];
return;
}
int nnd(int v){
pri[++tot]=rand();val[tot]=sum[tot]=v;siz[tot]=1;return tot;
}
void split(int x,int k,int &L,int &R){
if(!x){
L=R=0;return;
}
if(val[x]<=k){
L=x;split(rs(x),k,rs(x),R);
}
else{
R=x;split(ls(x),k,L,ls(x));
}pushup(x);
return;
}
int merge(int x,int y){
if(!x||!y)return x|y;
if(pri[x]>pri[y]){
rs(x)=merge(rs(x),y);pushup(x);return x;
}
else{
ls(y)=merge(x,ls(y));pushup(y);return y;
}
}
long long work(long long x,long long u){
long long ans=0;
while(u){
if(x>=sum[ls(u)]&&x<sum[ls(u)]+val[u]){
ans+=siz[rs(u)]+1;break;
}
else{
if(x<sum[ls(u)]){
ans+=siz[rs(u)]+1;
u=ls(u);
}
else{
x-=sum[sum[ls(u)]]+val[u];
u=rs(u);
}
}
}
return ans;
}
long long A[maxn],fus;
int main(){
long long n=qread(),q=qread(),i,x,v,maxs,mins;
int L=0,R=0,RT=0,g=0;
for(i=1;i<=n;i++)A[i]=qread();
for(i=1;i<=n;i++){
if(A[i]<0)fus+=A[i];
if(A[i]>0){
split(RT,A[i],L,R);
L=merge(L,nnd(A[i]));RT=merge(L,R);
}
}
for(i=1;i<=q;i++){
x=qread();v=qread();
if(A[x]<0){
fus-=A[x];
}
else{
if(A[x]>0){
split(RT,A[x],L,R);split(L,A[x]-1,L,g);
g=merge(ls(g),rs(g));L=merge(L,g);RT=merge(L,R);
}
}
A[x]=v;
if(A[x]<0){
fus+=A[x];
}
if(A[x]>0){
split(RT,A[x],L,R);
L=merge(L,nnd(A[x]));RT=merge(L,R);
}
maxs=siz[RT];
mins=work((-fus),RT);
cout<<maxs-mins+1<<'\n';
}
return 0;
}
/*
3 5
1 2 3
3 4
2 -2
1 -3
3 1
2 1
*/
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 11796kb
input:
3 5 1 2 3 3 4 2 -2 1 -3 3 1 2 1
output:
1 2 2 2 3
result:
ok 5 number(s): "1 2 2 2 3"
Test #2:
score: 0
Accepted
time: 2ms
memory: 11872kb
input:
3 5 1 2 3 3 4 2 -2 1 3 3 1 2 1
output:
1 2 1 2 1
result:
ok 5 number(s): "1 2 1 2 1"
Test #3:
score: 0
Accepted
time: 0ms
memory: 11696kb
input:
1 1 1000000000 1 1000000000
output:
1
result:
ok 1 number(s): "1"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3640kb
input:
1 1 -1000000000 1 -1000000000
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: -100
Wrong Answer
time: 0ms
memory: 11804kb
input:
1000 1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
output:
1000 125 521 685 1000 685 1000 685 521 1000 1000 685 685 685 168 685 1000 125 685 1000 685 368 685 521 685 1000 685 368 168 685 685 685 521 1000 1000 685 685 1000 521 1 521 1000 1000 685 1000 685 125 1000 1000 521 685 1000 1000 1000 685 685 685 685 1000 168 1000 1000 685 685 685 521 1000 685 521 521...
result:
wrong answer 1st numbers differ - expected: '946', found: '1000'