#include <bits/stdc++.h> using namespace std; int cmmdc(int a, int b){ int c = 0; while(b > 0){ c = a % b; a = b; b = c; } return a; } bool concat_verif(vector<int> &a, int b){ bool ok = 1; for(int i = 0; i < a.size(); i++){ bool bun = 0; for(int j = 0; j <= i; j++){ if(cmmdc(b, a[i]) == a[j]){ bun = 1; break; } } if(!bun) return 0; } return 1; } int main(){ cin.tie(0);ios::sync_with_stdio(0); //1. vector <vector <int>> v(1); int t = 0; //2. cin >> t; //3. for(int i = 1; i <= 100; i++){ int s1 = v.size(); for(int j = 0; j < s1; j++){ if( concat_verif( v[j], i ) ){ vector <int> v1 = v[j]; v1.push_back(i); v.push_back( v1 ); } if(v.size() == 100) break; } if(v.size() == 100) break; } for(int ii = 0; ii < t; ii++){ int k; cin >> k; cout << v[k].size() << " "; for(int i = 0; i < v[k].size(); i++) cout << v[k][i] << " "; cout << endl; } return 0; }

Main.cpp: In function 'bool concat_verif(std::vector<int>&, int)':
Main.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i = 0; i < a.size(); i++){
      |                    ~~^~~~~~~~~~
Main.cpp:16:10: warning: unused variable 'ok' [-Wunused-variable]
   16 |     bool ok = 1;
      |          ^~
Main.cpp: In function 'int main()':
Main.cpp:58:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |         for(int i = 0; i < v[k].size(); i++) cout << v[k][i] << " ";
      |                        ~~^~~~~~~~~~~~~