#include <stdio.h>
#include <stdlib.h>
 
// 線形探索：x が最初に見つかった位置を返し、count に個数を入れる
int linear_search(int a[], int n, int x, int *count){
    int first_pos = -1;
    *count = 0;
 
    for(int i = 0; i < n; i++){
        if(a[i] == x){
            (*count)++;
            if(first_pos == -1){
                first_pos = i;  // 最初に見つけた位置を記録
            }
        }
    }
    return first_pos;
}
 
int main(void) {
    int n, x, i;
    int *a;
    int ans = -1;
    int count = 0;
 
    scanf("%d %d", &n, &x);
    a = (int*)malloc(sizeof(int) * n);
    if(a == NULL){
        printf("ERROR\n");
        return -1;
    }
 
    for(i = 0; i < n; i++){
        scanf("%d", &a[i]);
    }
 
    ans = linear_search(a, n, x, &count);
 
    if(count > 0)
        printf("Found_%d_%ds_count=%d\n", ans, x, count);
    else
        printf("not found\n");
 
    free(a);
    return 0;
}
 
 

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

NTAgNQoxMgkzCTQJMTIJMTEJNQk3CTE1CTE4CTAJMAk1CTEwCTYJMTUJNgk0CTEwCTgJMTYJMTIJOQkxMAkxMQkxMgk5CTUJNwkxMAkxNAkzCTE3CTExCTEwCTcJMTUJNQkyCTYJMwkxOQk3CTgJMTYJMTMJMwkxOAkxMAkxOQk1

50 5
12	3	4	12	11	5	7	15	18	0	0	5	10	6	15	6	4	10	8	16	12	9	10	11	12	9	5	7	10	14	3	17	11	10	7	15	5	2	6	3	19	7	8	16	13	3	18	10	19	5