Compilare: user.cpp: In function ‘int main()’: user.cpp:24:19: warning: unused variable ‘nr1’ [-Wunused-variable] int n, k, m, i, nr1, nr2, st, dr, ans, in, sf, sol; ^ user.cpp:24:24: warning: unused variable ‘nr2’ [-Wunused-variable] int n, k, m, i, nr1, nr2, st, dr, ans, in, sf, sol; ^ user.cpp:25:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &k); ^ user.cpp:27:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^