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Submission #798070

# Submission time Handle Problem Language Result Execution time Memory
798070 2023-07-30T10:42:52 Z aymanrs Raisins (IOI09_raisins) C++14
100 / 100
 92 ms 24788 KB 
    #include<bits/stdc++.h>
    #pragma GCC optimize("O3,unroll-loops")
    #pragma GCC target("avx,avx2,bmi,bmi2,popcnt,lzcnt")
    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++){
              #pragma GCC ivdep
    			for(int i = 0;i+h < n;i++){
                  #pragma GCC ivdep
    				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 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 980 KB Output is correct
9 Correct 2 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 4176 KB Output is correct
13 Correct 16 ms 6196 KB Output is correct
14 Correct 5 ms 2260 KB Output is correct
15 Correct 19 ms 7268 KB Output is correct
16 Correct 2 ms 980 KB Output is correct
17 Correct 8 ms 3360 KB Output is correct
18 Correct 48 ms 14804 KB Output is correct
19 Correct 83 ms 21972 KB Output is correct
20 Correct 92 ms 24788 KB Output is correct