Submission #1208406

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208406		vanea	Sjeckanje (COCI21_sjeckanje)	C++20	15 / 110	2093 ms	492 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

const int mxN = 1e6+10;
const ll INF = 1e18;

ll dp[mxN];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, q;
    cin >> n >> q;
    vector<ll> v(n+1);
    for(int i = 1; i <= n; i++) {
        cin >> v[i];
    }
    for(int i = 1; i <= n; i++) {
        ll mx = v[i], mn = v[i];
        for(int j = i-1; j >= 1; j--) {
            mx = max(mx, v[j]);
            mn = min(mn, v[j]);
            dp[i] = max(dp[i], dp[j-1]+mx-mn);
        }
    }
    while(q--) {
        int l, r; ll x;
        cin >> l >> r >> x;
        for(int i = l; i <= r; i++) {
            v[i] += x;
        }
        for(int i = 1; i <= n; i++) {
            dp[i] = 0;
            ll mx = v[i], mn = v[i];
            for(int j = i-1; j >= 1; j--) {
                mx = max(mx, v[j]);
                mn = min(mn, v[j]);
                dp[i] = max(dp[i], dp[j-1]+mx-mn);
            }
        }
        cout << dp[n] << '\n';
    }
    return 0;
}

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