Compilare: main.cpp: In function 'int solve(const std::vector<int>&)': main.cpp:11:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 11 | for(int i = 1;i < tmp.size();++i) | ~~^~~~~~~~~~~~ main.cpp:21:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(j = i;j < n && index < tmp.size();++j) | ~~~~~~^~~~~~~~~~~~ main.cpp:26:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | if(index == tmp.size()) | ~~~~~~^~~~~~~~~~~~~ main.cpp:6:20: warning: unused variable 'left' [-Wunused-variable] 6 | int n = v.size(), left = 0; | ^~~~