Compilare: user.cpp: In function ‘int main()’: user.cpp:34:27: warning: narrowing conversion of ‘l’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] v[n1].push_back({n2,l}); ^ user.cpp:35:27: warning: narrowing conversion of ‘l’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] v[n2].push_back({n1,l}); ^ user.cpp:51:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0;i < v[nod].size(); i++){ ^ user.cpp:56:38: warning: narrowing conversion of ‘l’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] heap.push({v[nod][i].node, l}); ^ user.cpp:27:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&n,&m,&k); ^ user.cpp:29:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&nod); ^ user.cpp:33:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%lld",&n1,&n2,&l); ^