Question 1
#include <iostream>
using namespace std;

void draw(int row, int column, char symbol){

        int i, j;
        for(i=0;i<row;i++){
                for(j=0;j<column;j++)
                        cout << symbol;
                cout << endl;
        }
}
int main(){

        int col, row;
        char sym;

        cout << "Number of rows and columns = ";
        cin >> row >> col;

        cout << "Symbol = ";
        cin >> sym;

        draw(row, col, sym);

        return 0;
}

Question 2
#include <iostream>
using namespace std;

bool prime(int x){

        int i=2;
        bool isPrime = true;

        if(x==1)
                return false;
        else{
                while(i<=x/2&&isPrime){
                                if(x%i==0)
                                        isPrime=false;
                                i++;
                }
        }

        return isPrime;
}

int main(){

        int i, m, n;
        cout << "Enter m=";
        cin >> m;

        do{
                cout << "Enter n=";
                cin >> n;
        }while(n<=m);

        for(i=m;i<=n;i++){

                if(prime(i))
                        cout << i << " ";
        }
        cout << endl;

        return 0;
}


Question 3

#include <iostream>
using namespace std;

int factorial(int x){
    int ans=1;
    while(x>1){
        ans = ans * x;
        x = x - 1;
    }
    return ans;
}

int main(){
    
    int x,y,i;
    
    do{
        cout << "x = ";
        cin >> x;
    }while(x<1);
    
    do{
        cout << "y = ";
        cin >> y;
    }while(y <= x);
    
    for(i=x;i<=y;i++){
        cout << i << "! = " << factorial(i) << endl;
    }
    
    return 0;
}

Question 4
#include <iostream>
using namespace std;

int numbers[10]={12,5,7,19,4,8,20,17,2,3};
bool searchnumber(int x){
	int i=0;
	while(i<10){
	    if(numbers[i]==x)
	        return true;
	    i++;
	}
	return false;
}
int main()
{
    int x, i;
    
    cout << "x=";
    cin >> x;
    
    if(searchnumber(x))
        cout << "Found"<< endl;
    else
        cout << "Not found" << endl;
    
    return 0;
}

Question 5
#include <iostream>
using namespace std;

string sentence="Sacred Heart Canossian College";

int countchar(char x){

    int i, count=0;
    for(i=0;i<sentence.length();i++)
        if(sentence[i]==x)
            count++;
    return count;
}
int main()
{
    char x;
    
    cout << "x=";
    cin >> x;
    
    cout << "count of " << x << " = " << countchar(x) << endl;
    return 0;
}

Question 5 (count both uppercase and lowercase)
#include <iostream>
using namespace std;

string sentence="Sacred Heart Canossian College";

bool checkchar(char x, int i){
    int code; 
    if(sentence[i]==x)
        return true;
    else{
        if(x>='a'&&x<='z')
            code = x - 'a';
        else if(x>='A'&&x<='Z')
            code = x - 'A';
        
        if(('A'+code)==sentence[i]||('a'+code)==sentence[i])
            return true;
    }
    return false;
}

int countchar(char x){

    int i, count=0;
    for(i=0;i<sentence.length();i++)
        if(checkchar(x,i))
            count++;
    return count;
}
int main()
{
    char x;
    
    cout << "x=";
    cin >> x;
    
    cout << "count of " << x << " = " << countchar(x) << endl;
    return 0;
}