From 2f674dc80f0382f1c3178f435714960734dc9d3c Mon Sep 17 00:00:00 2001 From: Nguyễn Gia Phong Date: Sat, 6 Jun 2020 21:33:13 +0700 Subject: Reorganize stuff from secondary school --- .../cau2.c" | 39 ---------------------- 1 file changed, 39 deletions(-) delete mode 100644 "12/Q-V\304\251nhT\306\260\341\273\235ng-2006/cau2.c" (limited to '12/Q-VĩnhTường-2006/cau2.c') diff --git "a/12/Q-V\304\251nhT\306\260\341\273\235ng-2006/cau2.c" "b/12/Q-V\304\251nhT\306\260\341\273\235ng-2006/cau2.c" deleted file mode 100644 index 4ad1c3b..0000000 --- "a/12/Q-V\304\251nhT\306\260\341\273\235ng-2006/cau2.c" +++ /dev/null @@ -1,39 +0,0 @@ -#include -#include - -char prime(unsigned long long m) -{ - unsigned long i; - - for (i = 3; i <= sqrt(m); i += 2) - if (m % i == 0) - return 0; - - return 1; -} - -int main() -{ - unsigned long long n, i; - - scanf("%lld", &n); - - if (n == 1) { - puts("2"); - - return 0; - } - - i = (n % 2) ? n : n - 1; - - while (i <= 18446744073709551615ULL) { - i += 2; - - if (!prime(i)) - continue; - - printf("%lld\n", i); - - return 0; - } -} -- cgit 1.4.1