From efaded6a41b4c254334f37bd77c8ed0765a1fa49 Mon Sep 17 00:00:00 2001 From: tomsmeding Date: Tue, 5 Dec 2017 10:55:22 +0100 Subject: Day 5 --- 2017/.gitignore | 1 + 2017/5.c | 50 +++ 2017/5.in | 1078 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1129 insertions(+) create mode 100644 2017/5.c create mode 100644 2017/5.in (limited to '2017') diff --git a/2017/.gitignore b/2017/.gitignore index 2b9a6e0..7d8d720 100644 --- a/2017/.gitignore +++ b/2017/.gitignore @@ -1,3 +1,4 @@ *.hi *.o +*.dSYM ? diff --git a/2017/5.c b/2017/5.c new file mode 100644 index 0000000..c782816 --- /dev/null +++ b/2017/5.c @@ -0,0 +1,50 @@ +#include +#include +#include +#include + + +int main(void){ + freopen("5.in","r",stdin); + + int capjumps=128,numjumps=0; + int *jumps=malloc(capjumps*sizeof(int)); + + while(true){ + int target; + scanf("%d",&target); + if(feof(stdin))break; + if(numjumps==capjumps){ + capjumps*=2; + jumps=realloc(jumps,capjumps*sizeof(int)); + } + jumps[numjumps++]=target; + } + + int *jumps1=malloc(numjumps*sizeof(int)); + memcpy(jumps1,jumps,numjumps*sizeof(int)); + + int at=0; + int nsteps=0; + while(0<=at&&at=3)jumps1[at]--; + else jumps1[at]++; + at=next; + nsteps++; + } + printf("%d\n",nsteps); + + free(jumps1); + free(jumps); +} diff --git a/2017/5.in b/2017/5.in new file mode 100644 index 0000000..a515642 --- /dev/null +++ b/2017/5.in @@ -0,0 +1,1078 @@ +0 +1 +1 +-2 +-2 +-2 +-2 +-4 +2 +0 +-9 +1 +-5 +-12 +-9 +-10 +-7 +-7 +-2 +-10 +-2 +0 +-6 +-14 +-6 +-24 +-10 +0 +-4 +1 +1 +-30 +-31 +-24 +0 +-20 +-24 +-10 +-2 +0 +-28 +-8 +-3 +-23 +-6 +2 +-41 +-36 +-2 +-11 +-39 +-27 +-21 +-48 +-38 +-4 +-29 +-49 +-9 +-57 +-33 +-60 +-42 +-12 +-21 +-19 +-21 +-52 +-65 +-62 +-26 +-64 +-67 +-12 +-22 +-21 +-30 +-31 +-20 +-54 +-57 +-20 +-18 +-46 +-1 +1 +-76 +-25 +-80 +-60 +-80 +-36 +-30 +-85 +-21 +-89 +-62 +-66 +-4 +-39 +-64 +-39 +-88 +-17 +-5 +-69 +-90 +-14 +-2 +-13 +-76 +1 +-10 +-10 +-28 +0 +-96 +-16 +-33 +-90 +-56 +-25 +-9 +-4 +-110 +-54 +-72 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