Compilare: user.cpp: In function ‘void div(int*, int)’: user.cpp:25:9: warning: unused variable ‘i’ [-Wunused-variable] int i, r = 0; ^ user.cpp: In function ‘int main()’: user.cpp:34:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("sistem.in" ,"r",stdin ); ^ user.cpp:35:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("sistem.out","w",stdout); ^ user.cpp:37:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&N); ^ user.cpp:74:38: warning: array subscript is above array bounds [-Warray-bounds] printf("0%d", d[N][i]); ^ user.cpp:76:37: warning: array subscript is above array bounds [-Warray-bounds] printf("%d", d[N][i]); ^