Compilare: main.cpp: In function 'void citire()': main.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i=0;i<strlen(s);i++){ | ~^~~~~~~~~~ main.cpp:40:30: warning: narrowing conversion of 'w' from 'long long int' to 'int' [-Wnarrowing] 40 | v.push_back({x,y,cnt,w}); | ^ main.cpp: In function 'bool comp(const muchie&, const muchie&)': main.cpp:67:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 67 | if(st.cost==dr.cost) | ^ main.cpp: In function 'void apm()': main.cpp:93:22: warning: comparison of integer expressions of different signedness: 'std::vector<muchie>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 93 | if(sol.size()==n-1) | ~~~~~~~~~~^~~~~