Compilare: user.cpp: In function ‘int bs(int, int, int)’: user.cpp:48:12: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(lw>2&&VE[mi-1].x>x||(VE[mi-1].x==x&&VE[mi-1].y>=y))lw=max(lw-2,1); ^ user.cpp:63:12: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(lw>2&&VE[mi-1].x>x||(VE[mi-1].x==x&&VE[mi-1].y>=y))lw=max(lw-2,1); ^ user.cpp: In function ‘int main()’: user.cpp:74:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zc.in","r",stdin); ^ user.cpp:75:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zc.out","w",stdout); ^ user.cpp:76:25: 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); ^ user.cpp: In function ‘int bs(int, int, int)’: user.cpp:39:6: warning: ‘mi’ may be used uninitialized in this function [-Wmaybe-uninitialized] int mi,lw=1,hi=l; ^