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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#782729 | #8049. Equal Sums | hhiron | WA | 2ms | 7832kb | C++14 | 1.3kb | 2024-11-25 21:10:47 | 2024-11-25 21:10:47 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long LL;
inline int read(){
char ch=getchar();
while(!isdigit(ch) && ch!='-') ch=getchar();
int x=0,ff=1; if(ch=='-') ff=-1,ch=getchar();
while(isdigit(ch)) x=(x<<3) + (x<<1) + (ch^48),ch=getchar();
return x*ff;
}
const int N=505,P=998244353;
inline void add(int &x,int y){x+=y; x=x>=P?x-P:x;}
inline void sub(int &x,int y){x-=y; x=x<0?x+P:x;}
int n,m,f[2][N][N*2],F[N][N],la[N],ra[N],lb[N],rb[N];
int main(){
n=read(); m=read();
for(int i=1;i<=n;i++) la[i]=read(),ra[i]=read();
for(int i=1;i<=m;i++) lb[i]=read(),rb[i]=read();
int nw=0; f[nw][0][500]=1; f[nw][0][501]=P-1;
for(int i=0;i<=n;i++){
memset(f[nw^1],0,sizeof(f[nw^1]));
for(int j=0;j<=m;j++){
for(int s=1;s<=1000;s++) add(f[nw][j][s],f[nw][j][s-1]);
for(int s=0,bf;s<=1000;s++){
// if(i&&!j) cout<<s<<" "<<f[nw][j][s]<<endl;
if((bf=f[nw][j][s])){
cout<<i<<" "<<j<<" "<<s<<endl;
if(s==500) add(F[i][j],bf);
if(s<=500 && i<n) add(f[nw^1][j][s+la[i+1]],bf),sub(f[nw^1][j][s+ra[i+1]+1],bf);
if(s>500 && j<m) add(f[nw][j+1][s-rb[j+1]],bf),sub(f[nw][j+1][s-lb[j+1]+1],bf);
}
}
}
nw^=1;
}
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++) printf("%d ",F[i][j]);
puts("");
}
return 0;
}//fff
Details
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Test #1:
score: 0
Wrong Answer
time: 2ms
memory: 7832kb
input:
2 3 1 2 2 3 1 4 2 2 1 3
output:
0 0 500 1 0 501 1 0 502 1 1 497 1 1 498 1 1 499 1 1 500 1 1 501 1 2 499 2 1 499 2 1 500 2 1 501 2 1 502 2 1 503 2 2 499 2 2 500 2 2 501 2 2 502 2 3 498 2 3 499 2 3 500 2 3 501 2 0 0 3 4 4
result:
wrong answer 1st numbers differ - expected: '2', found: '0'