oj.uz

Submission #887878

# Submission time Handle Problem Language Result Execution time Memory
887878 2023-12-15T11:43:35 Z JakobZorz Raisins (IOI09_raisins) C++17
100 / 100
 305 ms 28756 KB 
#include<iostream>
#include<vector>
#include<queue>
#include<stack>
#include<algorithm>
#include<limits.h>
#include<math.h>
#include<map>
#include<set>
#include<unordered_map>
#include<unordered_set>
#include<iomanip>
#include<cstring>
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
using namespace std;
//const int MOD=1e9+7;
//typedef pair<ll,ll>Point;
//typedef pair<ll,ll>Line;
//#define x first
//#define y second

int mat[50][50];
int sum[51][51];
int w,h;

bool dpt[51][51][51][51];
int dp[51][51][51][51];
int get(int x1,int x2,int y1,int y2){
    if(dpt[x1][x2][y1][y2])
        return dp[x1][x2][y1][y2];
    
    if(x1==x2-1&&y1==y2-1)
        return 0;
    int res=1e9;
    for(int x=x1+1;x<x2;x++)
        res=min(res,get(x1,x,y1,y2)+get(x,x2,y1,y2));
    for(int y=y1+1;y<y2;y++)
        res=min(res,get(x1,x2,y1,y)+get(x1,x2,y,y2));
    res+=sum[x2][y2]+sum[x1][y1]-sum[x2][y1]-sum[x1][y2];
    dpt[x1][x2][y1][y2]=true;
    dp[x1][x2][y1][y2]=res;
    return res;
}

void solve(){
    cin>>h>>w;
    for(int y=0;y<h;y++){
        for(int x=0;x<w;x++){
            cin>>mat[x][y];
        }
    }
    
    for(int x=1;x<51;x++){
        for(int y=1;y<51;y++){
            sum[x][y]=mat[x-1][y-1]+sum[x-1][y]+sum[x][y-1]-sum[x-1][y-1];
        }
    }
    
    cout<<get(0,w,0,h)<<"\n";
    //cout<<get(0,1,0,2)<<"\n";
    //cout<<sum[0][0]+sum[2][2]-sum[0][2]-sum[2][0]<<"\n";
}

int main(){
    ios::sync_with_stdio(false);cout.tie(NULL);cin.tie(NULL);
    //freopen("bank.in","r",stdin);freopen("bank.out","w",stdout);
    int t=1;//cin>>t;
    while(t--)solve();
    return 0;
}

/*
 
2 3
2 7 5
1 9 5

 */

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 2512 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 4564 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 1 ms 4696 KB Output is correct
8 Correct 7 ms 13908 KB Output is correct
9 Correct 8 ms 13660 KB Output is correct
10 Correct 12 ms 15760 KB Output is correct
11 Correct 11 ms 18012 KB Output is correct
12 Correct 32 ms 18412 KB Output is correct
13 Correct 53 ms 20820 KB Output is correct
14 Correct 17 ms 20572 KB Output is correct
15 Correct 65 ms 20820 KB Output is correct
16 Correct 5 ms 6744 KB Output is correct
17 Correct 24 ms 13660 KB Output is correct
18 Correct 177 ms 25480 KB Output is correct
19 Correct 260 ms 28412 KB Output is correct
20 Correct 305 ms 28756 KB Output is correct