Compilare: main.cpp: In function 'int main()': main.cpp:83:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for(;k < s.length() && s[k] == ' '; ++k); | ~~^~~~~~~~~~~~ main.cpp:85:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | while(k < s.length()) | ~~^~~~~~~~~~~~ main.cpp:88:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 88 | while(k < s.length() && s[k] != ' ') | ~~^~~~~~~~~~~~ main.cpp:95:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 95 | while(k < s.length() && (s[k] == ' ') || (s[k] == '\n')) | ~~^~~~~~~~~~~~ main.cpp:95:34: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 95 | while(k < s.length() && (s[k] == ' ') || (s[k] == '\n')) | ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~ main.cpp:113:9: warning: unused variable 'maxflow' [-Wunused-variable] 113 | int maxflow = MaxFlow(0,n+m+1); | ^~~~~~~ main.cpp: In function 'int MaxFlow(int, int)': main.cpp:66:25: warning: 'ncor' may be used uninitialized [-Wmaybe-uninitialized] 66 | ans[mcor-n] = ncor; | ~~~~~~~~~~~~^~~~~~ main.cpp:55:23: note: 'ncor' was declared here 55 | int mcor, ncor; | ^~~~ main.cpp:66:21: warning: 'mcor' may be used uninitialized [-Wmaybe-uninitialized] 66 | ans[mcor-n] = ncor; | ~~~~^~ main.cpp:55:17: note: 'mcor' was declared here 55 | int mcor, ncor; | ^~~~