Compilare: main.cpp: In function 'int main()': main.cpp:164:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 164 | for(int i=0;i<v[pa.second].size();i++) | ~^~~~~~~~~~~~~~~~~~~~ main.cpp:130:9: warning: unused variable 't' [-Wunused-variable] 130 | int t,n,m,k,a,b,c,ok=0,l=0,minn=-2100000000,mc=0; | ^ main.cpp:130:23: warning: unused variable 'ok' [-Wunused-variable] 130 | int t,n,m,k,a,b,c,ok=0,l=0,minn=-2100000000,mc=0; | ^~