Compilare: main.cpp: In function 'int main()': main.cpp:27:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | while ( i1 < h[x % E].size() && h[x % E][i1] != x ) | ~~~^~~~~~~~~~~~~~~~~ main.cpp:30:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | if ( i1 == h[x % E].size() ) | ~~~^~~~~~~~~~~~~~~~~~ main.cpp:39:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | while ( i1 < h[x % E].size() && h[x % E][i1] != x ) | ~~~^~~~~~~~~~~~~~~~~ main.cpp:42:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | if ( i1 != h[x % E].size() ) { | ~~~^~~~~~~~~~~~~~~~~~ main.cpp:53:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | while ( i1 < h[x % E].size() && h[x % E][i1] != x ) | ~~~^~~~~~~~~~~~~~~~~ main.cpp:56:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | if ( i1 != h[x % E].size() ) | ~~~^~~~~~~~~~~~~~~~~~