Submission #20,364

20364

2026-01-06 17:06:22

cpp17

Accepted 40/40

116ms

4100 KiB

// UUID: 994fe9a7-b54f-4a30-ba77-983d89714e95
#include <bits/stdc++.h>
using namespace std;

#define int long long

signed main() {
	int n, k;
	cin >> n >> k;
	vector<array<int, 2>> v(n);
	vector<int> d;
	for (int i = 0; i < n; i++) {
		cin >> v[i][0] >> v[i][1];
		d.push_back(v[i][1] - k + 1);
		d.push_back(v[i][0]);
	}

	sort(d.begin(), d.end());
	int x = d[n], sum = 0;
	for (int i = 0; i < n; i++) {
		if (x < v[i][0]) sum += v[i][0] - x;
		if (x + k - 1 > v[i][1]) sum += (x + k - 1) - v[i][1];
	}

	cout << sum;
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	1/1	1ms	316 KiB
		4	Accepted	1/1	1ms	316 KiB
		5	Accepted	1/1	2ms	316 KiB
		6	Accepted	1/1	2ms	316 KiB
		7	Accepted	2/2	2ms	316 KiB
		8	Accepted	2/2	2ms	636 KiB
		9	Accepted	2/2	2ms	380 KiB
		10	Accepted	2/2	2ms	316 KiB
		11	Accepted	2/2	46ms	2268 KiB
		12	Accepted	2/2	46ms	2172 KiB
		13	Accepted	2/2	46ms	2316 KiB
		14	Accepted	2/2	46ms	2248 KiB
		15	Accepted	2/2	94ms	4100 KiB
		16	Accepted	2/2	96ms	4044 KiB
		17	Accepted	2/2	57ms	2312 KiB
		18	Accepted	2/2	56ms	2300 KiB
		19	Accepted	2/2	57ms	2224 KiB
		20	Accepted	2/2	57ms	2220 KiB
		21	Accepted	1/1	56ms	2200 KiB
		22	Accepted	1/1	57ms	2220 KiB
		23	Accepted	1/1	115ms	4032 KiB
		24	Accepted	1/1	114ms	3924 KiB
		25	Accepted	1/1	115ms	3924 KiB
		26	Accepted	1/1	114ms	4092 KiB
		27	Accepted	1/1	116ms	4008 KiB
		28	Accepted	1/1	115ms	3980 KiB