Compilare: user.cpp: In function ‘int main()’: user.cpp:13:18: warning: unused variable ‘j’ [-Wunused-variable] int n, m, i, j, k, s, t, d; ^ user.cpp:13:21: warning: unused variable ‘k’ [-Wunused-variable] int n, m, i, j, k, s, t, d; ^ user.cpp:13:27: warning: unused variable ‘t’ [-Wunused-variable] int n, m, i, j, k, s, t, d; ^ user.cpp:10:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interclasari.in","r",stdin); ^ user.cpp:11:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interclasari.out","w",stdout); ^ user.cpp:16:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&m); ^ user.cpp:18:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:20:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&d); ^