【Code】OI竞赛中程序文件输入输出格式

OI竞赛中程序文件输入输出格式

• C

#include <stdio.h>

int a,b;

int main() {
	freopen("ex.in","r",stdin);
	freopen("ex.out","w",stdout);
	scanf("%d%d",&a,&b);
	printf("%d\n",a+b);
	fclose(stdin);
	fclose(stdout);
	return 0;
}

• C++

#include <iostream>
#include <cstdio>
using namespace std;

int main() {
	freopen("ex.in","r",stdin);
	freopen("ex.out","w",stdout);
	cin >> a >> b;
	cout << a+b << endl;
	fclose(stdin);
	fclose(stdout);
	return 0;
}

• Pascal

Program ex;
var a,b:longint;

begin 
	assign(input,'ex.in');
	reset(input);
	assign(output,'ex.out');
	rewrite(output);
	read(a,b);
	writeln(a+b);
	close(input);
	close(output);
end.