Submission #427036

#	Time	Username	Problem	Language	Result	Execution time	Memory
427036		Mazaalai	Paint By Numbers (IOI16_paint)	C++14	32 / 100	1 ms	304 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;
        if (len == c[i]) {
            for (int j = pre[i]; j <= suf[i]; j++) ans[j-1] = 'X';
            if (pre[i]-2 >= 0) ans[pre[i]-2] = '_';
            if (suf[i] <= n) suf[i] = '_';
        }
        int len1 = c[i] * 2 - len;
        // cout << len1 << ' ' << c[i] - len1 + pre[i] << '\n';
        for (int j = 0; j < len1; j++) {
            // int st = 
            ans[j + c[i] - len1 + pre[i]-1] = 'X';
        }
    }
    
    return ans;
}

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