ID

input/code.cpp: In function 'int main()':
input/code.cpp:35:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; ans.size() < n; i++) {
                                ^

#include <bits/stdc++.h>
#define ll long long
#define N (1<<17)
#define ld long double
#define F first
#define S second
#define INF 1000111000
#define M 1000000007

using namespace std;

int main () {
  string s = "00000";
  vector<string> v;
  for (int i = 0; i <= 9; i++) {
    for (int j = 0; j <= 9; j++) {
      for (int k = 0; k <= 9; k++) {
	for (int l = 0; l <= 9; l++) {
	  for (int m = 0; m <= 9; m++) {
	    s[0] = (char)('0' + i);
	    s[1] = (char)('0' + j);
	    s[2] = (char)('0' + k);
	    s[3] = (char)('0' + l);
	    s[4] = (char)('0' + m);
	    v.push_back(s);
	  }
	}
      }
    }
  }
  sort(v.begin(), v.end());
  vector<string> ans;
  int n;
  cin>>n;
  for (int i = 0; ans.size() < n; i++) {
    bool b = true;
    for (string t : ans) {
      int x = 0;
      for (int j = 0; j < 5; j++) {
	x += t[j] != v[i][j];
      }
      if (x < 2) {
	b = false;
	break;
      }
    }
    if (b) ans.push_back(v[i]);
  }
  cout<<"00000"<<ans[n - 1]<<endl;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED