Compilare: main.cpp: In function 'long long int f(int)': main.cpp:23:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(j=0;j<p[i].size()-1;j++) c.push_back(p[i][j+1]-p[i][j]); | ~^~~~~~~~~~~~~~ main.cpp:24:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(j1=1;j1<c.size();j1++) | ~~^~~~~~~~~ main.cpp:26:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | while(j2<c.size()-1 && s+c[j2+1]<=x) | ~~^~~~~~~~~~~