Compilare: user.cpp: In function ‘int main()’: user.cpp:73:44: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ((a[i][j]%(1<<s))^(k%(1<<s))==((1<<s)-1)) nrtarcuri++; ^ user.cpp:75:42: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ((a[x1][y1]%(1<<s))^(k%(1<<s))==((1<<s)-1)) nrtarcuri--; ^ user.cpp:84:44: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ((a[i][j]%(1<<s))^(k%(1<<s))!=((1<<s)-1)) b[i][j]=-1; ^ user.cpp:56:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("panda.in","r",stdin); ^ user.cpp:57:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("panda.out","w",stdout); ^ user.cpp:58:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&p); ^ user.cpp:59:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&t); ^ user.cpp:60:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&x1,&y1,&k,&s); ^ user.cpp:63:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.cpp:72:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^ user.cpp:83:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^