제출 #1174383

#제출 시각아이디문제언어결과실행 시간메모리
1174383khangrl지구 온난화 (NOI13_gw)C++20
23 / 40
164 ms31744 KiB
#include<bits/stdc++.h> #define ff first #define ss second #define int long long #define pb push_back using namespace std; int n, h[1000005], mp[1000005]; vector <pair <int, int> > v; signed main(){ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin>>n; for(int i=1; i<=n; i++){ cin>>h[i]; v.pb({h[i], i}); } sort(v.begin(), v.end()); int cnt=0, ans=0; for(int i=n-1; i>=0; i--){ int idx=v[i].ss; if(mp[idx+1]+mp[idx-1]==0){ cnt++; } if(mp[idx+1]+mp[idx-1]==2){ cnt--; } mp[idx]=1; if(v[i].ff!=0){ ans=max(cnt, ans); } } cout<<ans; }
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