use scanf and printf in c++ code example

Example 1: scanf c

scanf("%d", &b);

Example 2: c printf scanf

int a;
scanf("%d", &a);
printf("%d", a);

Example 3: c++ how to use scanf

#include <stdio.h>

int main()
{
    int a, b, c;
    printf("Enter the first value:");
    scanf("%d", &a);
    printf("Enter the second value:");
    scanf("%d", &b);
    c = a + b;
    printf("%d + %d = %d\n", a, b, c);
    return 0;
}