简单模拟。
#pragma comment(linker, "/STACK:1024000000,1024000000") #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> #include<vector> #include<map> #include<set> #include<queue> #include<stack> #include<ctime> #include<iostream> using namespace std; typedef long long LL; const double pi=acos(-1.0); void File() { freopen("D:\\in.txt","r",stdin); freopen("D:\\out.txt","w",stdout); } template <class T> inline void read(T &x) { char c = getchar(); x = 0; while(!isdigit(c)) c = getchar(); while(isdigit(c)) { x = x * 10 + c - ‘0‘; c = getchar(); } } int n,f[200010]; int main() { cin>>n; int last=n; for(int i=1;i<=n;i++) { int x; cin>>x; f[x]=1; while(1) { if(f[last]) { printf("%d ",last); last--; } else break; } printf("\n"); } return 0; }
时间: 2024-11-08 19:21:51