Compilare: user.cpp: In function ‘int main()’: user.cpp:13:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d%d", &n, &k, &m, &p); ^ user.cpp:14:77: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i = 1; i <= n; i++) fscanf(fi,"%d%d", &v[i].second, &v[i].first); ^ user.cpp:15:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i = 1; i <= p; i++) fscanf(fi,"%lld", &obj[i]); ^ user.cpp:16:84: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i = 1; i <= m; i++) fscanf(fi,"%d", &task[i].first), task[i].second = i; ^