delete pics to save space

history_source/信息学奥赛一本通/1.5.1.5.cpp

@@ -0,0 +1,27 @@
+#include<cstdio>
+using namespace std;
+double poeple[4];
+void read(int n)
+{
+	if(n>=0&&n<=18) poeple[0]++;
+	if(n>=19&&n<=35) poeple[1]++;
+	if(n>=36&&n<=60) poeple[2]++;
+	if(n>=61&&n<=100) poeple[3]++;
+}
+int main()
+{
+	int n;
+	scanf("%d",&n);
+	for(int i=0;i<n;i++)
+	{
+		int x;
+		scanf("%d",&x);
+		read(x);
+	}
+	for(int i=0;i<4;i++)
+	{
+		printf("%.2lf%c\n",poeple[i]*100/n,'%');
+	}
+	return 0;
+}
+