更新了许多

陶陶摘苹果（升级版）.cpp

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+#include <algorithm>
+#include <iostream>
+#include <iomanip>
+#include <cstring>
+#include <cstdio>
+#include <ctime>
+#include <cmath>
+typedef long long l;
+typedef double d;
+typedef char c;
+using namespace std;
+struct wjh{
+	int x;
+	int y;
+}arr[10000];
+bool cmp(wjh a,wjh b){
+	return a.y<b.y;
+}
+int main(){
+	int a,b,c,d;
+	int cnt=0;
+	cin >>a>>b>>c>>d;
+	for(int i=0;i<a;i++){
+		cin >>arr[i].x>>arr[i].y;
+	}
+	sort(arr,arr+a,cmp);
+	for(int i=0;i<a;i++){
+		if(arr[i].x<=c+d){
+			b-=arr[i].y;
+			cnt++;
+		}
+		if(b<0){
+			cnt--;
+			break;
+		}
+		if(b==0){
+			break;
+		}
+	}
+	cout <<cnt;
+	return 0;
+}