历届试题 错误票据

#include<cstdio>#include<iostream>#include<algorithm>#include<cstring>using namespace std;int main(){int n,a[102],num;cin>>n;if(n<=0) return 0;int i=0;while(cin>>a[i]) i++;sort(a,a+i);int ans1,ans2;for(int j=1;j<i;j++){if(a[j]==a[j-1]) ans2=a[j];if(a[j]==a[j-1]+2) ans1=a[j-1]+1;}cout<<ans1<<' '<<ans2;}