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

int main() {
    char cmdline1[] = "phil.exe 1";
    char cmdline2[] = "phil.exe 2";
    char cmdline3[] = "phil.exe 3";
    char cmdline4[] = "phil.exe 4";
    char cmdline5[] = "phil.exe 5";
    PROCESS_INFORMATION prosInfo1, prosInfo2, prosInfo3, prosInfo4, prosInfo5;
    STARTUPINFO startUpInfo;
    ZeroMemory(&startUpInfo, sizeof(startUpInfo));
    startUpInfo.cb = sizeof(startUpInfo);

    clock_t t;
    t = clock();

    HANDLE Mutex0 = CreateMutex(
        NULL,
        FALSE,
        TEXT("0"));
    HANDLE Mutex1 = CreateMutex(
        NULL,
        FALSE,
        TEXT("1"));
    HANDLE Mutex2 = CreateMutex(
        NULL,
        FALSE,
        TEXT("2"));
    HANDLE Mutex3 = CreateMutex(
        NULL,
        FALSE,
        TEXT("3"));
    HANDLE Mutex4 = CreateMutex(
        NULL,
        FALSE,
        TEXT("4"));

    if (!CreateProcess(
        NULL,
        cmdline1,
        NULL,
        NULL,
        FALSE,
        0,
        NULL,
        NULL,
        &startUpInfo,
        &prosInfo1)) {
        printf("%d", 1);
    }
    if (!CreateProcess(
        NULL,
        cmdline2,
        NULL,
        NULL,
        FALSE,
        0,
        NULL,
        NULL,
        &startUpInfo,
        &prosInfo2)) {
        printf("%d", 2);

    }
    if (!CreateProcess(
        NULL,
        cmdline3,
        NULL,
        NULL,
        FALSE,
        0,
        NULL,
        NULL,
        &startUpInfo,
        &prosInfo3)) {
        printf("%d", 3);
    }
    if (!CreateProcess(
        NULL,
        cmdline4,
        NULL,
        NULL,
        FALSE,
        0,
        NULL,
        NULL,
        &startUpInfo,
        &prosInfo4)) {
        printf("%d", 4);

    }
    if (!CreateProcess(
        NULL,
        cmdline5,
        NULL,
        NULL,
        FALSE,
        0,
        NULL,
        NULL,
        &startUpInfo,
        &prosInfo5)) {
        printf("%d", 5);
    }
    WaitForSingleObject(prosInfo1.hProcess, INFINITE);
    CloseHandle(prosInfo1.hProcess);
    CloseHandle(prosInfo1.hThread);
    WaitForSingleObject(prosInfo2.hProcess, INFINITE);
    CloseHandle(prosInfo2.hProcess);
    CloseHandle(prosInfo2.hThread);
    WaitForSingleObject(prosInfo3.hProcess, INFINITE);
    CloseHandle(prosInfo3.hProcess);
    CloseHandle(prosInfo3.hThread);
    WaitForSingleObject(prosInfo4.hProcess, INFINITE);
    CloseHandle(prosInfo4.hProcess);
    CloseHandle(prosInfo4.hThread);
    WaitForSingleObject(prosInfo1.hProcess, INFINITE);
    CloseHandle(prosInfo5.hProcess);
    CloseHandle(prosInfo5.hThread);

    t = clock() - t;
    printf("%.2f seconds\n", ((float)t) / CLOCKS_PER_SEC);

    CloseHandle(Mutex0);
    CloseHandle(Mutex1);
    CloseHandle(Mutex2);
    CloseHandle(Mutex3);
    CloseHandle(Mutex4);
    system("pause");
    return 0;
}