oj.uz

Submission #13156

# Submission time Handle Problem Language Result Execution time Memory
13156 2015-02-01T08:43:24 Z paulsohn Orchard (NOI14_orchard) C++
25 / 25
 322 ms 12804 KB 
#include<stdio.h>
#define min(a,b) (a<b?a:b)
int n, m, sum[2000200], dy[1000100];
inline int access(int i, int j){ return (m+1)*i+j;}
int main(){
    int i,ii,j,tmp,tot=0,wei=50000000;
    scanf("%d %d",&n,&m);
    for(i=1;i<=n;++i){
        for(j=1;j<=m;++j){
            scanf("%d",&tmp);
            if(tmp){
                ++tot;
                sum[access(i,j)]=sum[access(i-1,j)]-1;
            }
            else sum[access(i,j)]=sum[access(i-1,j)]+1;
        }
    }
    for(i=0;i<n;++i){
        for(ii=i+1;ii<=n;++ii){
            for(j=1;j<=m;++j){
                dy[j]=sum[access(ii,j)]-sum[access(i,j)]+min(dy[j-1],0);
                wei=min(wei,dy[j]);
            }
        }
    }
    printf("%d\n",tot+wei);
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 12804 KB Output is correct
2 Correct 0 ms 12804 KB Output is correct
3 Correct 0 ms 12804 KB Output is correct
4 Correct 0 ms 12804 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12804 KB Output is correct
2 Correct 0 ms 12804 KB Output is correct
3 Correct 2 ms 12804 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 110 ms 12804 KB Output is correct
2 Correct 108 ms 12804 KB Output is correct
3 Correct 96 ms 12804 KB Output is correct

Subtask #4
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 12804 KB Output is correct
2 Correct 28 ms 12804 KB Output is correct
3 Correct 23 ms 12804 KB Output is correct

Subtask #5
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12804 KB Output is correct
2 Correct 10 ms 12804 KB Output is correct
3 Correct 10 ms 12804 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 312 ms 12804 KB Output is correct
2 Correct 322 ms 12804 KB Output is correct
3 Correct 314 ms 12804 KB Output is correct