delete pics to save space

history_source/挑战程序设计竞赛/2.4.2.1.cpp

@@ -0,0 +1,49 @@
+#include<bits/stdc++.h>
+using namespace std;
+int L,P,N;
+int A[10001],B[10001];
+void solve()
+{
+	A[N]=L;
+	B[N]=0;
+	N++;
+	priority_queue<int>que;
+	int ans=0,pos=0,tank=P;
+	for(int i=0;i<N;i++)
+	{
+		int d=A[i]-pos;
+		while(tank-d<0)
+		{
+			if(que.empty())
+			{
+				puts("-1");
+				return;
+			}
+			tank+=que.top();
+			que.pop();
+			ans++;
+		}
+		tank-=d;
+		pos=A[i];
+		que.push(B[i]);
+	}
+	printf("%d\n",ans);
+}
+void init()
+{
+	scanf("%d%d%d",&N,&L,&P);
+	int i;
+	for(i=0;i<N;i++) scanf("%d",A+i);
+	for(i=0;i<N;i++) scanf("%d",B+i); 
+}
+int main()
+{
+	init();
+	solve();
+	return 0;
+}
+/*
+4 25 10
+10 14 20 21
+10 5 2 4
+*/