timer

#include <stdio.h>
#include <windows.h>
#include <time.h>

int main (void)
{
    int m = 0, s = 0, pause = 0;

    while (!GetAsyncKeyState(VK_ESCAPE))
    {
        printf("escape - quit  /  left/right cursor key - reset/stop\n", m, s);
        printf("%2d:%2d", m, s);
        Sleep(1000);
        system("cls");

        if (GetAsyncKeyState(VK_LEFT)) {m = 0; s = 0;}
        if (GetAsyncKeyState(VK_RIGHT)) pause = ~pause;

        if (!pause)
        {

            s++;
            if (s == 60) {s = 0; m++;}
            if (m == 60)  m = 0;
        }
    }
    return 0;
}