UVa465 - Overflow

题目地址：点击打开链接

C++代码：

 

#include <cstdlib>

#include <cstdio>

int main()

{

	char s1[10000],s2[10000];

	double a,b,ans;

	char c;

	while(scanf("%s %c %s",s1,&c,s2)!=EOF)

	{

		a=atof(s1);

		b=atof(s2);

		printf("%s %c %s\n",s1,c,s2);

		if(a>2147483647)

			printf("first number too big\n");

		if(b>2147483647)

			printf("second number too big\n");

		if(c=='+')

			ans=a+b;

		else

			ans=a*b;

		if(ans>2147483647)

			printf("result too big\n");

	}

	return 0;

}