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  1. import std.stdio;
  2. int solve (int area) {
  3. 	int res = 6, total = 1;
  4. 	while (true)
  5. 		foreach (p; 0..6) {
  6. 			if (total >= area) return res;
  7. 			res += 1;
  8. 			total += res / 6 - !p;
  9. 		}
  10. }
  11. void main () {
  12. 	int n;
  13. 	readf (" %s", &n);
  14. 	writeln (solve (n));
  15. }
  16.  
Success #stdin #stdout 0s 4368KB
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stdin
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1000000000
stdout
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109548
https://ideone.com/OedCwa
language:
D (dmd 2.085.0)
created:
7 years ago
visibility:
secret

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