Submission #635358

#TimeUsernameProblemLanguageResultExecution timeMemory
635358MahdiWatermelon (INOI20_watermelon)C++17
0 / 100
24 ms12772 KiB
#include<bits/stdc++.h> #pragma GCC optimize("Ofast") using namespace std; #define all(v) v.begin(), v.end() #define F first #define S second typedef long long ll; typedef pair<int, int> pii; const int N=1e5+5; int n, b[N], k, ans[N], d[N]; vector<int>g[N], nd; bool mk[N]; struct seg_tree{ int sz, a[4*N]; seg_tree(){ sz=1; while(sz<n) sz<<=1; for(int i=sz-1;i<sz+n-1;++i) a[i]=1; for(int i=sz-2;i>=0;--i) a[i]=a[2*i+1]+a[2*i+2]; } void zero(int x){ a[x]=0; while(x){ --x; x/=2; --a[x]; } } int sum(int x, int lx, int rx, int l, int r){ if(lx>=r || rx<=l) return 0; if(lx>=l && rx<=r) return a[x]; int m=(lx+rx)/2; return sum(2*x+1, lx, m, l, r)+sum(2*x+2, m, rx, l, r); } int nxt(int x, int lx, int rx, int h, int t){ if(lx==rx-1) return x; int m=(lx+rx)/2; if(h>=m) return nxt(2*x+2, m, rx, h, t); if(a[2*x+2]<t) return nxt(2*x+1, lx, m, h, t-a[2*x+2]); return nxt(2*x+2, m, rx, h, t); } int per(int x, int lx, int rx, int h, int t){ if(lx+1==rx) return x; int m=(lx+rx)/2; if(h<m) return per(2*x+1, lx, m, h, t); if(a[2*x+1]<t) return per(2*x+2, lx, m, h, t-a[2*x+1]); return per(2*x+1, lx, m, h, t); } int nxt(int x){ int t=sum(0, 0, sz, x+1, n); if(t==0) return -1; return nxt(0, 0, sz, x, t); } int per(int x){ int t=sum(0, 0, sz, 0, x); if(t==0) return n; return per(0, 0, sz, x, t); } }; void dfs(const int &v){ mk[v]=1; for(int u: g[v]){ if(!mk[u]) dfs(u); } nd.push_back(v); } int main(){ cin>>n>>k; for(int i=0;i<n;++i) cin>>b[i]; if(b[n-1]!=-1){ cout<<-1<<'\n'; return 0; } if(n==1){ cout<<(k==1 ? 1 : -1)<<'\n'; return 0; } seg_tree A; vector<int>v; for(int i=0;i<n-1;++i){ if(b[i]==1){ g[i].push_back(i+1); if(i!=0) v.push_back(i-1); A.zero(i); } else{ g[i+1].push_back(i); } } for(int i=2;!v.empty();++i){ vector<int>w; for(int u: v){ if(b[u]==i){ g[u].push_back(A.nxt(u)); A.zero(u); int uw=A.per(u); if(uw!=n) w.push_back(uw); } else{ int uw=A.nxt(u); if(uw!=-1) g[uw].push_back(u); } } v=w; } for(int i=0;i<n;++i){ if(!mk[i]) dfs(i); } memset(mk, 0, sizeof(mk)); for(int u: nd){ mk[u]=1; for(int w: g[u]){ if(!mk[w]){ cout<<-1<<'\n'; return 0; } } } priority_queue<int>pq; for(int i=0;i<n;++i){ for(int u: g[i]) ++d[u]; } for(int i=0;i<n;++i){ if(d[i]==0) pq.push(-i); } for(int i=0;i<n;++i){ int u=-pq.top(); pq.pop(); ans[i]=u; for(int w: g[u]){ --d[w]; if(d[w]==0) pq.push(-w); } } for(int i=0;i<n;++i) cout<<ans[i]+1<<' '; cout<<'\n'; }
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