Submission #984674

#	Time	Username	Problem	Language	Result	Execution time	Memory
984674		blackavar	Sjeckanje (COCI21_sjeckanje)	C++14	55 / 110	2029 ms	13156 KiB

Main

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

long long n, a[1000005], d[1000005], q, dp[1000005];

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    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];
    dp[0] = 0;
    while (q--) {
        long long l, r, x;
        cin >> l >> r >> x;
        d[l - 1] -= x;
        d[r] += x;
        d[0] = d[1];
        for (int i = 1; i < n; i++) {
            if (d[i] * d[i - 1] > 0) dp[i] = max(dp[i - 1], dp[i - 1] + abs(d[i]));
            else dp[i] = max(dp[i - 1], dp[i - 2] + abs(d[i]));
        }
        cout << dp[n - 1] << "\n";
    }
    return 0;
}

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