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  1. #include<iostream>
    using namespace std;
    int main()
    {
    const int x=19;
    float a[x];
    int count=0;
    for(int i=0 ; i<x ; i++)
    {
    cout<<“grade [“<<i+1<<“] : “;
    cin>>a[i];
    }
    for(int i=0 ; i<x ; i++)
    {
    if(a[i]>=18)
    {
    count+=1;
    }
    }
    cout<<count;

    }

  2. #include<iostream>
    #include<conio.h>
    using namespace std;
    int main()
    {
    int i,count=0;
    int s[19]; //student scores
    for(i=0;i<19;i++)
    {
    cout<<“Enter student score “<<i+1<<” : “;
    cin>>s[i];
    if(s[i]>20&&s[i<0])
    {
    cout <<“Errornscore is out of rangen”;
    }
    }
    for(i=0;i<19;i++)
    {
    if(s[i]>18&&s[i]<=20)
    count++;
    }
    cout<<“Number of disaster scores 18 : “;
    cout<<count;
    getch();
    return 0;
    }

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