Compilare: main.cpp: In function 'void jos(int)': main.cpp:20:68: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | while ( val[ h[pos] ] > min( h[2 * pos], h[2*pos + 1]) && 2* pos < h.size() - 1 ) { | ~~~~~~~^~~~~~~~~~~~~~ main.cpp:33:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | if ( 2 * pos == h.size() - 1 && h[pos] > h[ 2*pos] ) { | ~~~~~~~~^~~~~~~~~~~~~~~