C :

#include<stdio.h> 
#define N 40 
int FailNum(int score[],int n); 
void ReadScore(int score[],int n); 
int main() 
{ 
    int score[N],n; 
    scanf("%d",&n); 
    ReadScore(score,n); 
    FailNum(score,n); 
    printf("%d\n",FailNum(score,n)); 
    return 0; 
} 
int FailNum(int score[],int n)  
{ 
    int i,count=0; 	
    for(i=0;i<n;i++) 
    { 
        if(score[i]<60) 
		    count++; 
	} 
    return count; 
} 
void ReadScore(int score[],int n) 
{ 
    int i; 
    for(i=0;i<n;i++) 
    { 
        scanf("%d",&score[i]); 
    } 
} 

C++ :

#include<iostream>
using namespace std;

int main()
{
  int n;
  cin >> n;
  int i;
  int a[40] = {0};
  for(i = 0; i < n; i++)
  {
    cin>> a[i];
  }
  int count = 0;
  for(i = 0; i < n; i++)
  {
if(a[i]<60)
  count++;
  }
  cout << count;
  return 0;
}