Compilare: main.cpp: In function 'int main()': main.cpp:16:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for (int j = 0; j < dp.size(); j++) { | ~~^~~~~~~~~~~ main.cpp:29:28: warning: 'val' may be used uninitialized [-Wmaybe-uninitialized] 29 | if (dp[i].first == ans && dp[i].second <= val) { main.cpp:8:19: note: 'val' was declared here 8 | int n, ans = 0, val; | ^~~