Submission #122271

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
122271	2019-06-28T03:37:28 Z	khulegub	Aliens (IOI07_aliens)	C++14	Compilation error	0 ms	0 KB

aliens

long long int read_int(){
	char r;
	bool start=false,neg=false;
	long long int ret=0;
	while(true){
		r=getchar();
		if((r-'0'<0 || r-'0'>9) && r!='-' && !start){
			continue;
		}
		if((r-'0'<0 || r-'0'>9) && r!='-' && start){
			break;
		}
		if(start)ret*=10;
		start=true;
		if(r=='-')neg=true;
		else ret+=r-'0';
	}
	if(!neg)
		return ret;
	else
		return -ret;
}

Compilation message

aliens.cpp: In function 'long long int read_int()':
aliens.cpp:6:5: error: 'getchar' was not declared in this scope
   r=getchar();
     ^~~~~~~
aliens.cpp:6:5: note: suggested alternative: 'char'
   r=getchar();
     ^~~~~~~
     char