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  1. #include <stdio.h>
  2.  
  3. int tansaku(int a[],int x){
  4.     int i=0, idx=-1;
  5.     for(i=0;a[i]!=-1;i++){
  6.         if(a[i]==x){
  7.             idx=i; break;
  8.         }
  9.     }
  10.     return idx;
  11. }
  12.  
  13. int main(){
  14.     int a[100],i,n,x,ret;
  15.     scanf("%d %d\n", &n,&x);
  16.     for(i=0;i<n;i++){
  17.        scanf("%d",&a[i]); 
  18.     } 
  19.     ret=tansaku(a,x);
  20.     printf("x:a[%d]\n",ret);
  21.     return 0;
  22.  
  23. }
  24.  
  25.  
Success #stdin #stdout 0s 5320KB
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stdin
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#include <stdio.h>

int tansaku(int a[],int x){
    int i=0, idx=-1;
    for(i=0;a[i]!=-1;i++){
        if(a[i]==x){
            idx=i; break;
        }
    }
    return idx;
}

int main(){
    int a[100],i,n,x,ret;
    scanf("%d %d\n", &n,&x);
    for(i=0;i<n;i++){
       scanf("%d",&a[i]); 
    } 
    ret=tansaku(a,x);
    printf("x:a[%d]\n",ret);
    return 0;
    
}
stdout
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x:a[3]
https://ideone.com/1dde1J
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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