제출 #534808

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
534808		Paul_Liao_1457	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++14	0 / 100	0 ms	332 KiB

Main

// 還要更強
#include<iostream>
#include<queue>
#include<set>
#include<map>
#include<iomanip>
#include<math.h>
#include<cstring>
#include<stack>
#include<string.h>
#include<random>
#include<algorithm>
#include<vector>

#define ll long long
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define REP(i,a,b) for(int i=a;i>=b;i--)
#define INF (ll)(4e18)
#define pb push_back
#define AC ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);

using namespace std;

ll b[200005],a[200005],pre[200005],suf[200005];
vector<ll> r,l;

signed main(){
    AC;
    bool ok=1;
    int n; cin>>n;
    FOR(i,1,n+1) cin>>a[i];
    FOR(i,1,n+1){
        b[i]=a[i]-a[i-1];
        if(b[i]>=0) r.pb(i);
        else l.pb(i);
        if(b[i]==0) ok=0;
    }
    FOR(i,1,n+1){
        pre[i]=pre[i-1];
        if(b[i]<=0) pre[i]+=(1-b[i]);
    }
    REP(i,n,1){
        suf[i]=suf[i+1];
        if(b[i]>=0) suf[i]+=(b[i]+1);
    }
    ll ans=INF;
    FOR(i,1,n+2){
        if(pre[i-1]>=suf[i]){
            ans=min(ans,pre[i-1]);
        }
    }
    cout<<ans<<endl;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:29:10: warning: variable 'ok' set but not used [-Wunused-but-set-variable]
   29 |     bool ok=1;
      |          ^~

• Subtask 1: 0 / 40
• Subtask 2: 0 / 60