Compilare: main.cpp: In function 'int32_t main()': main.cpp:172:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 172 | for (int i = 0; i < vals[val].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~ main.cpp:175:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 175 | if (i + 1 == vals[val].size()) nextX = n; | ~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:180:17: warning: unused variable 'l' [-Wunused-variable] 180 | int l = 2 * (i + 1) - nextX - 1; | ^ main.cpp:181:17: warning: unused variable 'r' [-Wunused-variable] 181 | int r = 2 * (i + 1) - x - 1; | ^