Submission #1099890

#	Time	Username	Problem	Language	Result	Execution time	Memory
1099890		model_code	Mosaic (IOI24_mosaic)	C++17	22 / 100	1103 ms	2097152 KiB

mosaic

// time_limit/subtask4.cpp

#include "mosaic.h"
#include "bits/stdc++.h"
using namespace std;

std::vector<long long> mosaic(std::vector<int> X, std::vector<int> Y, std::vector<int> T, std::vector<int> B, std::vector<int> L, std::vector<int> R) {
    int n = X.size();
    vector<vector<int> > grid(n, vector<int>(n));
    vector<vector<int> > sum(n, vector<int>(n));
    vector<vector<bool> > vis(n, vector<bool>(n));
    for(int i = 0; i < n; i++) {
        grid[0][i] = X[i];
    }
    for(int i = 0; i < n; i++) {
        grid[i][0] = Y[i];
    }
    for(int i = 1; i < n; i++) {
        for(int j = 1; j < n; j++) {
            grid[i][j] = !(grid[i-1][j] | grid[i][j-1]);
        }
    }

    for(int i = 0; i < n; i++) {
        for(int j = 0; j < n; j++) {
            if(i)grid[i][j] += grid[i-1][j];
            if(j)grid[i][j] += grid[i][j-1];
            if(i && j)grid[i][j] -= grid[i-1][j-1];
        }
    }

    vector<long long> ans;

    for(int i = 0; i < T.size(); i++) {
        int rx = T[i], ry = B[i];
        int cx = L[i], cy = R[i];
        int cnt = grid[ry][cy] - (rx==0?0:grid[rx-1][cy]) - (cx == 0?0:grid[ry][cx-1]) + ((rx==0||cx==0) ? 0 : grid[rx-1][cx-1]);
        ans.push_back(cnt);
    }
    
    return ans;
}

Compilation message (stderr)

mosaic.cpp: In function 'std::vector<long long int> mosaic(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
mosaic.cpp:34:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for(int i = 0; i < T.size(); i++) {
      |                    ~~^~~~~~~~~~

• 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