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A card pyramid of height 11 is constructed by resting two cards against each other. For h>1h>1, a card pyramid of height hh is constructed by placing 阅读全文
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You are given a special jigsaw puzzle consisting of n⋅mn⋅m identical pieces. Every piece has three tabs and one blank, as pictured below. The jigsaw p 阅读全文
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A. Sum of Round Numbers 把一个数拆成几个整十/百/千...的数的和。 #include <bits/stdc++.h> using namespace std; int main() { int t; cin>>t; while(t--) { int i,num,ans=0; 阅读全文