23 lines
306 B
C++
23 lines
306 B
C++
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#include<bits/stdc++.h>
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using namespace std;
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int main() {
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int n,b,i;
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scanf("%d",&n);
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int a[n+1];
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for(i=1; i<=n; i++)
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scanf("%d",&a[i]);
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scanf("%d",&b);
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for(i=1; i<=n; i++) {
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if(b==a[i]) {
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printf("%d\n",i);
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break;
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}
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}
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if(i==n+1) {
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printf("-1");
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}
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return 0;
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}
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