Question

How to use uint64_t in C

Answer 1

#include <stdio.h>
#include <inttypes.h>
 
int main() {
    // unsigned 64-bit integer
    uint64_t n = 1844674407370955161; 
     
    printf("%" PRIu64, n);
}
  
 
 
  
/*
run:
  
1844674407370955161
  
*/

 

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Answer 2

#include <stdio.h>
#include <stdint.h>
 
int main() {
    // unsigned 64-bit integer
    uint64_t n = 1844674407370955161; 
     
    printf("%llu", n);
}
  
 
 
  
/*
run:
  
1844674407370955161
  
*/

 

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