delete pics to save space

2023-08-03 09:22:52 +08:00
commit de60cd6ed4
1334 changed files with 66221 additions and 0 deletions
--- a/p.CH3301.cpp
+++ b/p.CH3301.cpp
@ -0,0 +1,21 @@
+//http://contest-hunter.org:83/contest/0x30%E3%80%8C%E6%95%B0%E5%AD%A6%E7%9F%A5%E8%AF%86%E3%80%8D%E4%BE%8B%E9%A2%98/3301%20%E5%90%8C%E4%BD%99%E6%96%B9%E7%A8%8B
+#include<cstdio>
+typedef long long LL;
+LL a,b,x,y;
+LL exgcd(LL a,LL b,LL &x,LL &y)
+{
+	if(!b) { x=1; y=0; return a; }
+	LL d=exgcd(b,a%b,y,x);
+	y-=x*(a/b);
+	return d;
+}
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	scanf("%d%d",&a,&b);
+	exgcd(a,b,x,y);
+	printf("%d\n",(x+b)%b);
+	return 0;
+}