Compilare: main.cpp: In function 'int main()': main.cpp:40:46: warning: narrowing conversion of 'sum' from 'long long int' to 'int' inside { } [-Wnarrowing] v.push_back(Suma{sum, i, j, k}); ^ main.cpp:45:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size() && v[i].sum * 2 <= s; i++) ~~^~~~~~~~~~ main.cpp:52:13: warning: unused variable 'pos' [-Wunused-variable] int pos = -1; ^~~