Compilare: main.cpp: In function 'int check(int)': main.cpp:16:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | while( i < t - 1 && k <= s[x[i]].size() && k <= s[x[i + 1]].size() && h[x[i]][k] == h[x[i + 1]][k] ) | ~~^~~~~~~~~~~~~~~~~ main.cpp:16:48: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | while( i < t - 1 && k <= s[x[i]].size() && k <= s[x[i + 1]].size() && h[x[i]][k] == h[x[i + 1]][k] ) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:32:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for( j = 0; j < s[i].size(); j++ ){ | ~~^~~~~~~~~~~~~ main.cpp:41:26: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 41 | if( s[x[j]].size() > dr ) | ~~~~~~~~~~~~~~~^~~~