Submission #795033

#	Time	Username	Problem	Language	Result	Execution time	Memory
795033		ttamx	Sjeckanje (COCI21_sjeckanje)	C++14	55 / 110	2086 ms	5012 KiB

Main

#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N=2e5+5;
const int K=1<<19;

int n,q;
ll a[N],d[N],dp[N];

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> q;
    for(int i=1;i<=n;i++)cin >> a[i];
    for(int i=1;i<=n;i++)d[i]=a[i]-a[i-1];
    while(q--){
        int l,r,x;
        cin >> l >> r >> x;
        d[l]+=x;
        d[r+1]-=x;
        for(int i=2;i<=n;i++){
            dp[i]=max(dp[i-2]+abs(d[i]),dp[i-1]);
            if((d[i]^d[i-1])>=0)dp[i]=max(dp[i],dp[i-1]+abs(d[i]));
        }
        cout << dp[n] << "\n";
    }
}

• Subtask 1: 15 / 15
• Subtask 2: 40 / 40
• Subtask 3: 0 / 55