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Submission #798066

# Submission time Handle Problem Language Result Execution time Memory
798066 2023-07-30T10:40:00 Z aymanrs Raisins (IOI09_raisins) C++14
100 / 100
 91 ms 24768 KB 
    #include<bits/stdc++.h>
    #pragma GCC optimize("O3,unroll-loops")
    #pragma GCC target("avx,avx2,bmi,bmi2,popcnt,lzcnt")
    const int MOD = 1e9+7;
    using namespace std;
    void solve(){
    	int n, m;
    	cin >> n >> m;
    	int dp[n][m][n][m];
    	int pr[n][m];
    	for(int i = 0;i < n;i++) for(int j = 0;j < m;j++) {
    		cin >> pr[i][j];
    		dp[0][0][i][j] = 0;
    		if(i) pr[i][j] += pr[i-1][j];
    		if(j) {
    			pr[i][j] += pr[i][j-1];
    			if(i) pr[i][j] -= pr[i-1][j-1];
    		}
    	}
    	for(int h = 0;h < n;h++){
    		for(int w = h ? 0 : 1;w < m;w++){
    			for(int i = 0;i+h < n;i++){
    				for(int j = 0;j+w < m;j++){
    					dp[h][w][i][j] = pr[i+h][j+w]-(i ? pr[i-1][j+w] : 0)-(j ? pr[i+h][j-1] : 0)+(i&&j ? pr[i-1][j-1] : 0);
    					int x = INT_MAX;
    					for(int k = 0;k < h;k++) x = min(x, dp[k][w][i][j]+dp[h-k-1][w][i+k+1][j]);
    					for(int k = 0;k < w;k++) x = min(x, dp[h][k][i][j]+dp[h][w-k-1][i][j+k+1]);
    					dp[h][w][i][j] += x;
    				}
    			}
    		}
    	}
    	cout << dp[n-1][m-1][0][0] << '\n';
    }
    int main(){
    	ios_base::sync_with_stdio(false);
    	cin.tie(0);
    	solve();
    }

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 2 ms 980 KB Output is correct
9 Correct 4 ms 1364 KB Output is correct
10 Correct 4 ms 1748 KB Output is correct
11 Correct 3 ms 1620 KB Output is correct
12 Correct 11 ms 4052 KB Output is correct
13 Correct 20 ms 6200 KB Output is correct
14 Correct 5 ms 2260 KB Output is correct
15 Correct 24 ms 7264 KB Output is correct
16 Correct 2 ms 980 KB Output is correct
17 Correct 8 ms 3364 KB Output is correct
18 Correct 48 ms 14804 KB Output is correct
19 Correct 80 ms 21852 KB Output is correct
20 Correct 91 ms 24768 KB Output is correct