Compilare: user.cpp: In function ‘int bun(int, int)’: user.cpp:15:23: warning: suggest parentheses around comparison in operand of ‘|’ [-Wparentheses] if(x<1 || x>n || y<1 | y>m) return 0; ^ user.cpp: In function ‘int main()’: user.cpp:58:9: warning: unused variable ‘x’ [-Wunused-variable] int x,y; ^ user.cpp:58:11: warning: unused variable ‘y’ [-Wunused-variable] int x,y; ^ user.cpp:56:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("immortal.in", "r", stdin); ^ user.cpp:57:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("immortal.out", "w", stdout); ^ 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,&k); ^ user.cpp:62:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&v1[i].x,&v1[i].y); ^