Compilare: user.cpp: In function ‘int main()’: user.cpp:93:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i; j + 1 < Active.size(); j++) ~~~~~~^~~~~~~~~~~~~~~ user.cpp:100:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < Active.size() && check(Active[i], y)) i++; ~~^~~~~~~~~~~~~~~ user.cpp:122:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Active.size(); i++) ~~^~~~~~~~~~~~~~~ user.cpp:130:9: warning: variable ‘good’ set but not used [-Wunused-but-set-variable] int good = 0; ^~~~ user.cpp:58:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &n, &m); ^ user.cpp:60:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &v[i].x, &v[i].y); ^ user.cpp:65:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &w[i].x, &w[i].y); ^