Compilare: main.cpp: In function 'void solve()': main.cpp:24:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<long long int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(st=0;st<v.size();st++){ | ~~^~~~~~~~~ main.cpp:25:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<long long int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for(; dr<v.size() && br.count()<n;++dr){ | ~~^~~~~~~~~ main.cpp:25:36: warning: comparison of integer expressions of different signedness: 'std::size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 25 | for(; dr<v.size() && br.count()<n;++dr){ | ~~~~~~~~~~^~ main.cpp:30:18: warning: comparison of integer expressions of different signedness: 'std::size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 30 | if(br.count()==n){ | ~~~~~~~~~~^~~ main.cpp:14:13: warning: unused variable 'k' [-Wunused-variable] 14 | int n,m,k=0; | ^ main.cpp:22:24: warning: 'minndr' may be used uninitialized in this function [-Wmaybe-uninitialized] 22 | int st,dr=0,minnst,minndr; | ^~~~~~ main.cpp:22:17: warning: 'minnst' may be used uninitialized in this function [-Wmaybe-uninitialized] 22 | int st,dr=0,minnst,minndr; | ^~~~~~