Submission #427006

#	Time	Username	Problem	Language	Result	Execution time	Memory
427006		Mazaalai	Paint By Numbers (IOI16_paint)	C++14	0 / 100	1 ms	204 KiB

paint

#include "paint.h"
#include <bits/stdc++.h>
using namespace std;
string solve_puzzle(string s, vector<int> c1) {
    int n = s.size(), k = c1.size();
    vector <int> c(k+5, 0);
    for (int i = 1; i <= k; i++) c[i] = c1[i-1];
    string ans = "";
    for (int i = 0; i < n; i++) ans += '?';
    vector <int> pre(k+5, 1), suf(k + 5, n);
    pre[1] = 1, suf[k] = n;
    for (int i = 2; i <= k; i++) pre[i] = pre[i-1] + c[i-1]+1;
    for (int i = k - 1; i > 0; i--) suf[i] = suf[i+1] - c[i+1] - 1;
    for (int i = 1; i <= k; i++) {
        // cout << i << ": " << pre[i] << ' ' << suf[i] << '\n';
        int len = suf[i] - pre[i] + 1;
        if (len >= c[i] * 2) continue;
        int len1 = c[i] * 2 - len;
        for (int j = 0; j < len1; j++) {
            int st = 
            ans[j + k - len1 + pre[i]] = 'X';
        }
    }
    
    return ans;
}

Compilation message (stderr)

paint.cpp: In function 'std::string solve_puzzle(std::string, std::vector<int>)':
paint.cpp:20:17: warning: unused variable 'st' [-Wunused-variable]
   20 |             int st =
      |                 ^~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 3
• Subtask 3: 0 / 22
• Subtask 4: 0 / 27
• Subtask 5: 0 / 21
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10