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 --- 2ndary/THT/B/QG-2016/trigrid.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 2ndary/THT/B/QG-2016/trigrid.c (limited to '2ndary/THT/B/QG-2016/trigrid.c') diff --git a/2ndary/THT/B/QG-2016/trigrid.c b/2ndary/THT/B/QG-2016/trigrid.c new file mode 100644 index 0000000..15ad552 --- /dev/null +++ b/2ndary/THT/B/QG-2016/trigrid.c @@ -0,0 +1,29 @@ +#include + +const long long TESTS[] = {4, 3, 5, 6, 111, 222, 3333, 4444, 55555, 666666, + 7777777, 88888888, 999999999, 123456789123456789, + 1000000000000000000}; + +long long quadratic(long long x, char a, char b, char c) +{ + return a * x * x + b * x + c; +} + +int main() +{ + char i; + long long k, q; + FILE *f; + + f = fopen("TRIGRID.TXT", "w"); + + for (i = 0; i < 15; i++) { + q = TESTS[i] % 2016; + k = TESTS[i] / 2016 % 2016 * 252 * quadratic(q, 6, 10, 2); + fprintf(f, "%d\n", (k + quadratic(q, 2, 5, 2) * q / 8) % 2016); + } + + fclose(f); + + return 0; +} -- cgit 1.4.1