Submission #33254

#	Time	Username	Problem	Language	Result	Execution time	Memory
33254		YoLo	Foehn Phenomena (JOI17_foehn_phenomena)	C++14	30 / 100	256 ms	5140 KiB

foehn_phenomena

#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define int long long
#define endl '\n'
#define pi acos(-1)
#define pque priority_queue
#define N 1000000
#define lmax LONG_LONG_MAX
typedef pair < int, int > ii;
typedef vector < int > vi;
typedef vector < vi > vii;
int mod = 1000000007;
int n, q, s, t, a[200009], f[200009], sums, sumt, l, r, x;
signed main()
{
	//ios_base::sync_with_stdio(0);
	cin >> n >> q >> s >> t;
	for(int i = 0; i <= n; i++)
		cin >> a[i];
	for(int i = 1; i <= n; i++)
	{
		f[i] = a[i] - a[i - 1];
		if(f[i] > 0)
			sums += f[i];
		else
			sumt -= f[i];
	}
	while(q--)
	{
		cin >> l >> r >> x;
		if(f[l] > 0)
			sums -= f[l];
		else
			sumt += f[l];
		if(r < n)
		{
			if(f[r + 1] > 0)
				sums -= f[r + 1];
			else
				sumt += f[r + 1];
		}
		f[l] += x;
		f[r + 1] -= x;
		if(f[l] > 0)
			sums += f[l];
		else
			sumt -= f[l];
		if(r < n)
		{
			if(f[r + 1] > 0)
				sums += f[r + 1];
			else
				sumt -= f[r + 1];
		}
		cout << sumt * t - sums * s << endl;
	}
}

• Subtask 1: 30 / 30
• Subtask 2: 0 / 10
• Subtask 3: 0 / 60