Compilare: main.cpp: In function 'void solve()': main.cpp:18:14: warning: comparison of integer expressions of different signedness: 'int64_t' {aka 'long int'} and 'std::vector<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | if(a < val.size()) val[a] = max(val[a], b); | ~~^~~~~~~~~~~~ main.cpp:23:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(int i = 1; i < val.size(); i++) { | ~~^~~~~~~~~~~~ main.cpp:24:36: warning: comparison of integer expressions of different signedness: 'int64_t' {aka 'long int'} and 'std::vector<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int64_t x = 0; x + cnt < dp.size(); x++) { | ~~~~~~~~^~~~~~~~~~~