Compilare: main.cpp: In function 'std::vector<info> combine(int, int)': main.cpp:30:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<info>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for ( int i = 0; i < dp[u].size (); i++ ) | ~~^~~~~~~~~~~~~~~ main.cpp:31:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<info>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for ( int j = 0; j < dp[v].size (); j++ ) { | ~~^~~~~~~~~~~~~~~