Compilare: user.cpp: In function ‘int main()’: user.cpp:70:68: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(Max<A1[MaxA].val-B[MaxB].val||(Max==A1[MaxA].val-B[MaxB].val&&unsortedA1[B[MaxB].pos].val+unsortedB[B[MaxB].pos].val>A1[MaxA].val+B[MaxA].val||(unsortedA1[B[MaxB].pos].val+unsortedB[B[MaxB].pos].val==A1[MaxA].val+B[MaxA].val&&A1[MaxA].val>unsortedA1[B[MaxB].pos].val)))Max=A1[MaxA].val-B[MaxB].val,mpos=A1[MaxA].pos; ^ user.cpp:82:68: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(Max<B[MaxB].val-A1[MaxA].val||(Max==B[MaxB].val-A1[MaxA].val&&unsortedB[A1[MaxA].pos].val+unsortedA1[A1[MaxA].pos].val>A1[MaxB].val+B[MaxB].val||(unsortedB[A1[MaxA].pos].val+unsortedA1[A1[MaxA].pos].val==A1[MaxB].val+B[MaxB].val&&B[MaxB].val>unsortedB[A1[MaxA].pos].val)))Max=B[MaxB].val-A1[MaxA].val,mpos=B[MaxB].pos; ^ user.cpp:43:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gramezi.in","r",stdin); ^ user.cpp:44:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gramezi.out","w",stdout); ^ user.cpp:46:25: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(f,1,MAX,stdin); ^