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#include <bits/stdc++.h> using namespace std; int n, k; void process() { int r; cin >> r; if(r == 1) return; for(int i = 1; i < n; i++) { cout << (i ^ 阅读全文
posted @ 2021-07-13 15:58
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AquaMoon had 𝑛n strings of length 𝑚m each. 𝑛n is an odd number. When AquaMoon was gone, Cirno tried to pair these 𝑛n strings together. After makin 阅读全文
posted @ 2021-07-13 12:03
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AquaMoon has 𝑛n friends. They stand in a row from left to right, and the 𝑖i-th friend from the left wears a T-shirt with a number 𝑎𝑖ai written on 阅读全文
posted @ 2021-07-13 12:00
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Cirno gave AquaMoon a chessboard of size 1×𝑛1×n. Its cells are numbered with integers from 11 to 𝑛n from left to right. In the beginning, some of th 阅读全文
posted @ 2021-07-13 11:56
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