Compilare: user.cpp: In function ‘int main()’: user.cpp:30:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pietre.in","r",stdin); ^ user.cpp:31:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pietre.out","w",stdout); ^ user.cpp:32:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:35:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&a[i],&b[i]); ^ user.cpp: In function ‘void whytoff()’: user.cpp:7:11: warning: array subscript is above array bounds [-Warray-bounds] w[1][2]=2; ^ user.cpp:16:16: warning: array subscript is above array bounds [-Warray-bounds] w[dw][2]=poz+nr; ^ user.cpp: In function ‘int main()’: user.cpp:49:43: warning: array subscript is above array bounds [-Warray-bounds] if (w[mid][1]==a[i] && w[mid][2]==b[i]) ^ user.cpp:55:63: warning: array subscript is above array bounds [-Warray-bounds] if (w[mid][1]>a[i] || (w[mid][1]==a[i] && w[mid][2]>b[i])) ^