Compilare: user.cpp: In function ‘int main()’: user.cpp:13:15: warning: unused variable ‘j’ [-Wunused-variable] int n, i, j, s, t, d, k, q, r1, r2, r3; ^ user.cpp:13:21: warning: unused variable ‘t’ [-Wunused-variable] int n, i, j, s, t, d, k, q, r1, r2, r3; ^ user.cpp:13:24: warning: unused variable ‘d’ [-Wunused-variable] int n, i, j, s, t, d, k, q, r1, r2, r3; ^ user.cpp:13:33: warning: unused variable ‘r1’ [-Wunused-variable] int n, i, j, s, t, d, k, q, r1, r2, r3; ^ user.cpp:13:37: warning: unused variable ‘r2’ [-Wunused-variable] int n, i, j, s, t, d, k, q, r1, r2, r3; ^ user.cpp:13:41: warning: unused variable ‘r3’ [-Wunused-variable] int n, i, j, s, t, d, k, q, r1, r2, r3; ^ user.cpp:10:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secvente.in","r",stdin); ^ user.cpp:11:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secvente.out","w",stdout); ^ user.cpp:17:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:19:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&k); ^