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  1. /* 正と負の判定　*/
  2. // 宮野皓平
  3. #include <stdio.h>
  4. #include <math.h>//関数計算用
  5. int main(void) {
  6.         int n;
  7.         float a,p;
  8.  
  9.         printf("整数値を入力\n");
  10.         scanf("%d",&a);
  11.         if(a>=0){
  12.         	    p=sqrt(p);
  13.         	    printf("正です:%f\n",p);
  14.         } else {
  15.         	    n=a*a;
  16.         	    printf("負です:%d\n",n);
  17.         }
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0s 4436KB
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stdin
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Standard input is empty
stdout
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整数値を入力
正です:0.000000
https://ideone.com/VcL5C5
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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