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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int  a,b;
  5.     printf("\t请输入整数a和b:");
  6.     scanf("%d%d",&a,&b);
  7.     printf("%d＋%d=%d\n",a,b,a+b);
  8.     printf("%d－%d=%d\n",a,b,a-b);
  9.     printf("%d*%d=%d\n",a,b,a*b);
  10.     printf("平均值=%.2f\n",(a+b)/2.0);
  11. 	return 0;
  12. }
  13.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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	请输入整数a和b:-899163744＋32765=-899130979
-899163744－32765=-899196509
-899163744*32765=-1919388896
平均值=-449565489.50
https://ideone.com/c6YjPL
language:
C (gcc 8.3)
created:
3 hours ago
visibility:
public

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