제출 #499454

#제출 시각아이디문제언어결과실행 시간메모리
499454AbitoLampice (COCI21_lampice)C++14
0 / 50
1 ms204 KiB
#include <iostream> using namespace std; int main() { int n,k; cin>>n>>k; int a[n]; for (int i=0;i<n;i++) { cin>>a[i]; } int x=0,y=-1; bool b=0; for (int i=0;i<n-1;i++) { if (a[i]==a[i+1]) { for (int j=1;j<n-1;j++) { if (a[j]==a[j+1]) { x++; y=a[j]; } else { b=1; break; } } if (b) break; } } if (b) cout<<1<<endl<<y; else cout<<y; return 0; }
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