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Submission #13155

# Submission time Handle Problem Language Result Execution time Memory
13155 2015-02-01T08:41:30 Z paulsohn Orchard (NOI14_orchard) C++
20 / 25
 325 ms 8896 KB 
#include<stdio.h>
#define min(a,b) (a<b?a:b)
int n, m, sum[1000100], 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 8896 KB Output is correct
2 Correct 0 ms 8896 KB Output is correct
3 Correct 0 ms 8896 KB Output is correct
4 Correct 0 ms 8896 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8896 KB Output is correct
2 Correct 0 ms 8896 KB Output is correct
3 Correct 0 ms 8896 KB Output is correct

Subtask #3
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 8896 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 8896 KB Output is correct
2 Correct 20 ms 8896 KB Output is correct
3 Correct 21 ms 8896 KB Output is correct

Subtask #5
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8896 KB Output is correct
2 Correct 10 ms 8896 KB Output is correct
3 Correct 10 ms 8896 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 305 ms 8896 KB Output is correct
2 Correct 325 ms 8896 KB Output is correct
3 Correct 287 ms 8896 KB Output is correct