17 lines
262 B
C
17 lines
262 B
C
#include <stdio.h>
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#include <stdlib.h>
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int main(int argc, char *argv[])
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{
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unsigned long long int n;
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n = atoll(argv[1]);
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int start = n;
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for (int i = 1; i < start; i++)
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{
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n = n * i;
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}
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printf("%llu\n", n);
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return 0;
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}
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