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  1. #include <stdio.h>
  2.  
  3. int prime(int p) {
  4.     int j = 2;
  5.     int r = sqrt(p);
  6.     while (j <= r) if (!(p%j++) || p == 1) return 0;    
  7.     return 1;
  8. }
  9.  
  10. int main() {
  11.     int n, m, p, t;
  12.  
  13.     scanf("%d", &t);
  14.     for (int i = 0; i<t;++i)
  15.         {
  16.             scanf("%d %d", &m, &n);
  17.             for (p = m; p <= n; ++p)
  18.             {
  19.                 if (prime(p)) printf("%d ", p);
  20.             }
  21.         }
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0s 2160KB
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stdin
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2
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stdout
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1 2 3 5 7 3 5 7
https://ideone.com/11PVxu
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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