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28 lines
471 B
28 lines
471 B
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#include <input.h>
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#include <pairs.h>
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__attribute__((pure))
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uint64_t chk_pair(const struct ipair* restrict pair)
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{
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return pair->prev < pair->next;
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}
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__attribute__((pure))
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uint64_t sum_pairs(uint64_t length, const input_t input[const restrict length])
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{
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uint64_t res = 0;
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for(size_t i=0;i<length-1;i++)
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{
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res += chk_pair((const struct ipair*)(input+i));
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}
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return res;
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}
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int part1(uint64_t* restrict _res)
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{
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*_res = sum_pairs(INPUT_SIZE, INPUT);
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return 0;
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}
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