Submission #13151

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
13151	2015-02-01 08:23:22	paulsohn	Orchard (NOI14_orchard)	C++98	12 / 25	303 ms	204596 KiB

orchard

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#include<stdio.h>
#include<algorithm>
using namespace std;
int n, m, V[160][2010], sum[160][2010], dy[160][160][2010];
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;
                V[i][j]=-1;
            }
            else V[i][j]=1;
            sum[i][j]=V[i][j]+sum[i-1][j];
        }
    }
    for(i=0;i<n;++i){
        for(ii=i+1;ii<=n;++ii){
            for(j=1;j<=m;++j){
                dy[i][ii][j]=sum[ii][j]-sum[i][j]+min(dy[i][ii][j-1],0);
                wei=min(wei,dy[i][ii][j]);
            }
        }
    }
    printf("%d\n",tot+wei);
    return 0;
}
 
 
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• Subtask 1: 4 / 4
• Subtask 2: 4 / 4
• Subtask 3: 0 / 5
• Subtask 4: 0 / 3
• Subtask 5: 4 / 4
• Subtask 6: 0 / 5