Compilare: main.cpp: In function 'int main()': main.cpp:93:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < arb[i].size(); j++) ~~^~~~~~~~~~~~~~~ main.cpp:33:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &p, &t); ^ main.cpp:36:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ main.cpp:38:46: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &x[i], &y[i]); ^