题解 | #找x#
找x
https://www.nowcoder.com/practice/069e2130430c41229ab25e47fa0949a6
#include <bits/stdc++.h> using namespace std; int main() { int n,x; int pos=-1; while(cin>>n){ int a[n]; for(int i=0;i<n;i++){ cin>>a[i]; } cin>>x; for(int i=0;i<n;i++){ if(a[i]==x){ pos=i; break; } } cout<<pos<<endl; }}