Submission #1065702

#	Time	Username	Problem	Language	Result	Execution time	Memory
1065702		sunboi	Paint By Numbers (IOI16_paint)	C++17	0 / 100	0 ms	348 KiB

paint

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


string solve_puzzle(string s, vector<int> c){
    int n = s.size();
    int k = c.size();
    
    int suf = -(c[0] + 1);
    int pref = 0;
    set<pair<int, int>> black;
    
   for (int x : c){
       suf += x + 1;
   }
   
   for (int i = 0; i < k; i++){
       //cout << "intervalo::::" << pref << ' ' << suf << endl;
       int r = min(pref + c[i] - 1, n - suf - 1);
       int l = max(pref, n - suf - c[i]);
       //cout << l << ' ' << r << endl;
       if (r >= l) black.insert({l, r});
       
       pref += c[i] + 1;
       if (i < k - 1) suf -= c[i + 1] + 1;
   }
    for (pair<int, int> x : black){
        //cout << x.first << ' ' << x.second << endl;
        for (int i = x.first; i <= x.second; i++) s[i] = 'X';
    }
    for (int i = 0; i< n; i++){
       if (s[i] == '.') s[i] = '?';
       
       if (i > 0 && i < n - 1){
           if (s[i - 1] == 'X' && s[i + 1] == 'X') s[i] = '_';
       }
    }
    return s;
}

• 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