【CodeForces】426Div2 C The Meaningless Game
2017-07-31 10:57
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链接:http://codeforces.com/contest/834/problem/C
Solution
考的时候想复杂了,没从整体下手。
因为一边乘了k一边乘了k^2,所以乘起来一定是k^3
记c=(a∗b)13,如果a、b mod c都是0,那么就能构造出满足条件的方案
Solution
考的时候想复杂了,没从整体下手。
因为一边乘了k一边乘了k^2,所以乘起来一定是k^3
记c=(a∗b)13,如果a、b mod c都是0,那么就能构造出满足条件的方案
#include<stdio.h> #include<cmath> using std::pow; typedef long long ll; ll a,b,c,d; int n; inline void solve() { scanf("%I64d%I64d",&a,&b); c=pow(d=a*b,1.0/3)+0.2; puts(a%c==0 && b%c==0 && c*c*c==d?"Yes":"No"); } int main() { scanf("%d",&n); while (n--) solve(); }
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