Submission #1452675

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
 
int len[N];
priority_queue<long long> PQL, PQR;
long long pbl, pbr;
long long Ans;
 
int main()
{
	int n;
	cin >> n;

	for (int i = 0;i < n;i++)
	{
		scanf("%d%d", &pos[i].first, &pos[i].second);
		len[i] = pos[i].second - pos[i].first;
	}

	ll l, r, len;
	for (int i = 0;i < n;i++)
	{
		cin >> l >> r;
		len = r - l;

		pbr += len;
		PQL.push(r - pbl);
		PQR.push(pbr - r);
		while (true) {
			long long L = PQL.top() + pbl;
			long long R = -PQR.top() + pbr;
			if (L <= R)
			{
				break;
			}
			Ans += L - R;
			PQL.pop(), PQR.pop();
			PQL.push(R - pbl), PQR.push(pbr - L);
		}
		pbl -= len;
	}
	
	cout << Ans << endl;
	return 0;
}

Submission Info

Compile Error

./Main.cpp:4:9: error: ‘N’ was not declared in this scope
 int len[N];
         ^
./Main.cpp: In function ‘int main()’:
./Main.cpp:16:18: error: ‘pos’ was not declared in this scope
   scanf("%d%d", &pos[i].first, &pos[i].second);
                  ^
./Main.cpp:17:3: error: ‘len’ was not declared in this scope
   len[i] = pos[i].second - pos[i].first;
   ^
./Main.cpp:20:2: error: ‘ll’ was not declared in this scope
  ll l, r, len;
  ^
./Main.cpp:23:10: error: ‘l’ was not declared in this scope
   cin >> l >> r;
          ^
./Main.cpp:23:15: error: ‘r’ was not declared in this scope
   cin >> l >> r;
               ^
./Main.cpp:24:3: error: ‘len’ was not declared in this scope
   len = r - l;
   ^