B. Maxim Buys an Apartment
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解题说明:此题是一道模拟题,直接算出 n/3 +1 即 n 中满足这种序列需要多少个1 ,然后跟k 比较,比 k 大就直接 2*k,比 k 小就是 n-k.
#include<cstdio>#include<iostream>#include<string>#include<cstring>using namespace std;int main() {long long int n, k;scanf("%lld%lld", &n, &k);if (k < n && k){printf("1 ");}else{printf("0 ");}if ((3 * k) <= n){printf("%lld\n", k << 1);}else{printf("%lld\n", n - k);}return 0;}
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