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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#32062 | #1461. Greedy Algorithm | Wu_Ren | WA | 2ms | 3808kb | C++14 | 986b | 2022-05-16 21:32:41 | 2022-05-16 21:32:43 |
Judging History
answer
#include <bits/stdc++.h>
const int w=500;
using namespace std;
int n,m,a[60][60],b[60][60],*c[60],C[60][1010],*f[2],F[2][50010],p,o;
void qmx(int &x,int y){
if(y>x) x=y;
}
int work(){
int res=0,mn=2e9;
for(int i=0;i<n;i++){
c[i]=C[i]+w+5;
for(int j=-w;j<=w;j++) C[i][j]=0;
}
for(int i=0;i<n;i++){
int mx=0;
for(int j=0;j<m;j++) mx=max(mx,++C[i][a[i][j]-a[(i+1)%n][j]]);
mn=min(mn,mx),res+=mx;
}
res-=mn;
for(int i=0;i<2;i++) f[i]=F[i]+n*w+5;
for(int i=-n*w;i<=n*w;i++) f[0][i]=f[1][i]=0;
p=0,o=1;
for(int i=0;i<n;i++){
for(int j=-i*w;j<=i*w;j++){
for(int k=0;k<m;k++) qmx(f[o][j+a[i][k]-a[(i+1)%n][k]],f[p][j]+C[i][a[i][k]-a[(i+1)%n][k]]);
}
p^=1,o^=1;
}
return max(res,f[p][0]);
}
int main(){
scanf("%d%d",&n,&m);
for(int i=0;i<n;i++) for(int j=0;j<m;j++) scanf("%d",&a[i][j]);
int ans=work();
for(int i=0;i<n;i++) for(int j=0;j<m;j++) b[j][i]=a[i][j];
swap(a,b),swap(n,m);
ans+=work();
printf("%d\n",ans);
}
Details
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Test #1:
score: 0
Wrong Answer
time: 2ms
memory: 3808kb
input:
2 3 1 2 3 4 5 99
output:
44030
result:
wrong answer 1st numbers differ - expected: '8', found: '44030'