Compilare: main.cpp: In function 'int solve(int, int, int, int, int)': main.cpp:33:1: warning: no return statement in function returning non-void [-Wreturn-type] 33 | } | ^ main.cpp: In function 'int main()': main.cpp:58:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | if (val >= v.size()) | ~~~~^~~~~~~~~~~