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Educational Codeforces Round 149 (Rated for Div. 2) A - Grasshopper on a Line 思路:只有两种情况,x整除k时为x-1和1,否则为x void solve() { int x, k; cin >> x >> k; if (x 阅读全文
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2023 (ICPC) Jiangxi Provincial Contest -- Official Contest A - Drill Wood to Make Fire 思路:n>=s*v B - Wonderful Array 思路:对a进行a%m,不会对结果造成影响,则0<=bi+1-bi< 阅读全文
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Codeforces Round 871 (Div. 4) A - Love Story #include<bits/stdc++.h> using namespace std; typedef pair<int,int>PII; typedef pair<string,int>PSI; const 阅读全文