Compilare: user.cpp: In function ‘int main()’: user.cpp:44:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j; ^ user.cpp:44:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp:45:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("iepuri.in", "r", stdin); ^ user.cpp:46:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("iepuri.out", "w", stdout); ^ user.cpp:47:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &T); ^ user.cpp:50:67: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d %d %d %d %d %d", &X, &Y, &Z, &A, &B, &C, &N); ^