Submission #1312064

#	Time	Username	Problem	Language	Result	Execution time	Memory
1312064		eri16	Mosaic (IOI24_mosaic)	C++20	22 / 100	182 ms	206008 KiB

mosaic

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

vector<ll> mosaic(vector<int> X, vector<int> Y,vector<int> T, vector<int> B,vector<int> L, vector<int> R){
    
    int arr[5005][5005];
    int dp[5005][5005];
    
    ll n = X.size();
    
    for (int i=0; i<n; i++){arr[0][i]=X[i];}
    for (int i=0; i<n; i++){arr[i][0]=Y[i];}    
    
    dp[0][0]=arr[0][0];
    
    for (int i=1; i<n; i++){
        dp[0][i]=dp[0][i-1]+arr[0][i];
        dp[i][0]=dp[i-1][0]+arr[i][0];        
    }
    
    for (int i=1; i<n; i++){
        for (int j=1; j<n; j++){
            arr[i][j]= 1 - (arr[i-1][j] | arr[i][j-1]);
            dp[i][j]=dp[i][j-1]+dp[i-1][j]-dp[i-1][j-1]+arr[i][j];
        }
    }
    
    ll q = T.size();
    
    vector <ll> ans;
    
    ll t,b,l,r;
    
    for (int i=0; i<q; i++){
        
        t=T[i];
        b=B[i];
        l=L[i];
        r=R[i];
        
        ll sm=dp[b][r];
        
        if (l){sm-=dp[b][l-1];}
        if (t){sm-=dp[t-1][r];}
        if (l && t){sm+=dp[t-1][l-1];}
        
        ans.push_back(sm);
    }
    return ans;
}    

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 7
• Subtask 4: 10 / 10
• Subtask 5: 0 / 8
• Subtask 6: 0 / 22
• Subtask 7: 0 / 19
• Subtask 8: 0 / 22