Submission #294024

#	Time	Username	Problem	Language	Result	Execution time	Memory
294024		kshitij_sodani	Raisins (IOI09_raisins)	C++14	100 / 100	997 ms	26056 KiB

raisins

#include <bits/stdc++.h>
using namespace std;
#define a first
#define b second
#define pb push_back

typedef long long llo;


int n,m;
int it[51][51];
int dp[51][51][51][51];
int find(int i,int j,int k,int l){
	if(dp[i][j][k][l]>-1){
		return dp[i][j][k][l];
	}
	dp[i][j][k][l]=0;
	for(int ii=i;ii<=k;ii++){
		for(int jj=j;jj<=l;jj++){
			dp[i][j][k][l]+=it[ii][jj];
		}
	}
	int ma=1e9;

	for(int ii=i;ii<k;ii++){
		ma=min(ma,find(i,j,ii,l)+find(ii+1,j,k,l));
	}
	for(int jj=j;jj<l;jj++){
		ma=min(ma,find(i,j,k,jj)+find(i,jj+1,k,l));

	}

	dp[i][j][k][l]+=ma;
	return dp[i][j][k][l];

}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin>>n>>m;
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			cin>>it[i][j];
		}
	}
	for(int i=0;i<n;i++){
		for(int  j=0;j<m;j++){
			for(int k=0;k<n;k++){
				for(int l=0;l<m;l++){
					dp[i][j][k][l]=-1;
					if(i==k and j==l){
						dp[i][j][k][l]=0;
					}
				}
			}
		}
	}
	cout<<find(0,0,n-1,m-1)<<endl;










	


	return 0;
}

• Subtask 1: 100 / 100