From 2c1dccf57d7ad5e25e79063dea41fd7bfa9d9ac6 Mon Sep 17 00:00:00 2001 From: tomsmeding Date: Sat, 2 Dec 2017 09:30:07 +0100 Subject: Move 2016 to its own folder --- 2016/5a.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 2016/5a.c (limited to '2016/5a.c') diff --git a/2016/5a.c b/2016/5a.c new file mode 100644 index 0000000..d8bbd7f --- /dev/null +++ b/2016/5a.c @@ -0,0 +1,25 @@ +#include +#include +#include + +int main(void){ + int counter=0; + char inbuf[100]; + unsigned char outbuf[16]; + int prelen; + scanf("%s%n",inbuf,&prelen); + + for(int i=0;i<8;i++){ + while(true){ + int len=prelen+sprintf(inbuf+prelen,"%d",counter); + counter++; + MD5((const unsigned char*)inbuf,len,outbuf); + if(outbuf[0]==0&&outbuf[1]==0&&(outbuf[2]>>4)==0){ + putchar("0123456789abcdef"[outbuf[2]&0xf]); + fflush(stdout); + break; + } + } + } + putchar('\n'); +} -- cgit v1.2.3-70-g09d2