Compilare: main.cpp: In function 'int main()': main.cpp:61:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int x = 0; x < V.size(); x++){ ~~^~~~~~~~~~ main.cpp:97:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Thr.size(); i++) ~~^~~~~~~~~~~~ main.cpp:98:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Thr.size(); j++){ ~~^~~~~~~~~~~~ main.cpp:33:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &n, &m); ^ main.cpp:35:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d", &p[i]); ^ main.cpp:38:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &x, &y); ^