Compilare: main.cpp: In function 'int main()': main.cpp:51:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(sol.size()<n-1){ ~~~~~~~~~~^~~~ main.cpp:43:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ main.cpp:45:62: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &v[i].nod1, &v[i].nod2, &v[i].cost); ^