Miscellany

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char cYesNo = '\0';
    int iResp1 = 0;
    int iResp2 = 0;
    int iResp3 = 0;
    int iElapsedTime = 0;
    int iCurrentTime = 0;
    int iRandomNum = 0;
    int i1 = 0;
    int i2 = 0;
    int i3 = 0;
    int iCounter = 0;

    srand(time(NULL));
    printf("\tPlay a game of Concentration? (y or n): ");
    scanf("%c", &cYesNo);

    if (cYesNo == 'y'||cYesNo == 'Y') {
        i1 = rand() % 100;
        i2 = rand() % 100;
        i3 = rand() % 100;

        printf("\nConcentrate on the next three numbers\n");
        printf("\n%d\t%d\t%d\n", i1, i2, i3);

        iCurrentTime = time(NULL);
        do {
            iElapsedTime = time(NULL);
        } while ((iElapsedTime - iCurrentTime) < 3); //end do while loop

        system("cls");

        printf("\nEnter each # separated with one space: ");
        scanf("%d%d%d", &iResp1, &iResp2, &iResp3);

        if (i1 == iResp1 && i2 == iResp2 && i3 == iResp3)
            printf("\nCongratulations!\n");
        else
            printf("\nSorry, correct numbers were %d %d %d\n", i1, i2, i3);
    }
}