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18 lines
259 B
C
18 lines
259 B
C
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#include<stdio.h>
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int a[10000];
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int main(void){
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int N,M,i;
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scanf("%d",&M);
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for(i = 0; i < M; i++){
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scanf("%d",&a[i]);
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}
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scanf("%d",&N);
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for(i = 0; i < M; i++){
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if(a[i] == N){ printf("%d",i+1);return 0;}
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}
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printf("-1");
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return 0;
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}
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