#include <iostream>
#include <Windows.h>
#include <ctime>
using namespace std;
int main() {
    int s, e;
    s = clock();
    Sleep(1000); // sleep for 1 second.
    e = clock();
    cout << "Sleep for " << (e - s) / 1000.0 << " second(s)" << endl;
    system("pause"
 
);
}

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