50 lines
880 B
C++
50 lines
880 B
C++
#include <cctype>
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#include <cstdio>
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#include <iostream>
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#include <stack>
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using namespace std;
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const int MAX_N=3e6+5;
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int readInt();
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int a[MAX_N];
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int ans[MAX_N];
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stack<int>s;
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int main(){
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const int n=readInt();
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for(int i=1;i<=n;i++){
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a[i]=readInt();
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}
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ans[n]=0;
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s.push(n);
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for(int i=n-1;i>=1;i--){
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if (a[i]>=a[s.top()]) {
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ans[i]=0;
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s.push(i);
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}else{
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ans[i]=s.top();
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while (s.size()>0&&a[s.top()]>a[i]) {
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s.pop();
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}
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s.push(i);
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}
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}
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for(int i=1;i<=n;i++){
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cout<<ans[i]<<" ";;
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}
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cout<<endl;
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}
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int readInt(){
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int x=0,w=1;
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char ch=0;
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while (!isdigit(ch)) {
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if(ch=='-')w=-1;
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ch=getchar();
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}
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while(isdigit(ch)){
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x=x*10+(ch-'0');
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ch=getchar();
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}
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return x*w;
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} |