Hi
The code which we submit are being tested on 64bit or 32bit machines ? Does it make any difference in a computationally intensive code if 32 bit or 64 bit is used.
CODE :
#include <ctime>
#include <iostream>
using namespace std;
void test(int end) {
clock_t startInt = clock();
int a = 0;
for (int i = 0; i < end; i++) {
a++;
}
clock_t endInt = clock();
cout << "int " << a << " sizeof " << sizeof(int) << " " << (double) (endInt - startInt) / CLOCKS_PER_SEC << endl;
clock_t startLong = clock();
long b = 0;
for (long i = 0; i < end; i++) {
b++;
}
clock_t endLong = clock();
cout << "long " << b << " sizeof " << sizeof(long) << " " << (double) (endLong - startLong) / CLOCKS_PER_SEC << endl;
clock_t startLongLong = clock();
long long c = 0;
for (long long i = 0; i < end; i++) {
c++;
}
clock_t endLongLong = clock();
cout << "long long " << c << " sizeof " << sizeof(long long) << " " << (double) (endLongLong - startLongLong) / CLOCKS_PER_SEC << endl;
}
int main() {
test(2147483647);
test(1000000);
}
int 2147483647 sizeof 4 11.965
long 2147483647 sizeof 4 11.716
long long 2147483647 sizeof 8 27.238
int 1000000 sizeof 4 0.015
long 1000000 sizeof 4 0
long long 1000000 sizeof 8 0.016
USING 32 BIT VISTA C++ ECLIPSE CDT WITH CYGWIN
