一看就懂的，好吧

解题思路:

注意事项:

参考代码:

#include<iostream>

#include<iomanip>

#include<math.h>

using namespace std;

int main()

{

int arry[100];

int i;

int youxiu = 0;

int tongguo = 0;

int bujige = 0;

for ( i = 0;; i++)

{

cin >> arry[i];

if (arry[i] <= 0)

{

break;

}

}

for (int j = 0; j < i; j++)

{

if (arry[j] >= 85)

{

youxiu++;

}

if (arry[j] >= 60 && arry[j] < 85)

{

tongguo++;

}

if (arry[j] > 0 && arry[j] < 60)

{

bujige++;

}

}

cout << ">=85:" << youxiu << endl;

cout << "60-84:" << tongguo << endl;

cout << "<60:" << bujige;

return 0;

}