Submission #425446

#	Time	Username	Problem	Language	Result	Execution time	Memory
425446		errorgorn	Orchard (NOI14_orchard)	C++17	25 / 25	188 ms	11604 KiB

orchard

#include <cstdio>
#include <vector>
#include <algorithm>
using namespace std;
typedef pair<int,int> ii;
int n,m,k,c,i,mmm;
vector<int> v[155];
int sum(int a,int b){
int mm=0,cm=0;
for (int x=0;x<m;x++){
	i=v[b][x]-v[a][x];
	cm=max(cm+i,i);
	mm=max(mm,cm);
}
return mm;
}
int main(){
	scanf("%d%d",&n,&m);
	for (int x=0;x<m;x++){
		v[0].push_back(0);
	}
	for (int x=1;x<=n;x++){
		for (int y=0;y<m;y++){
			scanf("%d",&c);
			i=v[x-1][y];
			if (c==1) i++,k++;
			else i--;
			v[x].push_back(i);
		}
	}
	/*for (int x=0;x<=n;x++){
		for (int y=0;y<m;y++){
			printf("%d ",v[x][y]);
		}
		printf("\n");
	}*/
	for (int x=0;x<n;x++){
		for (int y=x+1;y<=n;y++){
			mmm=max(mmm,sum(x,y));
		}
	}
	printf("%d\n",k-mmm);
}

Compilation message (stderr)

orchard.cpp: In function 'int main()':
orchard.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |  scanf("%d%d",&n,&m);
      |  ~~~~~^~~~~~~~~~~~~~
orchard.cpp:24:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |    scanf("%d",&c);
      |    ~~~~~^~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 4 / 4
• Subtask 3: 5 / 5
• Subtask 4: 3 / 3
• Subtask 5: 4 / 4
• Subtask 6: 5 / 5