Compilare: user.cpp: In function ‘int main()’: user.cpp:22:12: warning: unused variable ‘pg’ [-Wunused-variable] int k, pg, add, g, b, a, c, n, t, ind, take, sum; ^ user.cpp:23:12: warning: unused variable ‘pv’ [-Wunused-variable] double pv, best; ^ user.cpp:24:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &t); ^ user.cpp:26:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n, &g); ^ user.cpp:30:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d", &a, &b, &c); ^