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题目： 112. ab-ba time limit per test: 0.5 sec. memory limit per test: 4096 KB You are given natural numbers a and b. Find ab-ba. Input Input contains numbers a and b (1≤a,b≤100). Outpu

193. Chinese Girls' Amusement time limit per test: 0.5 sec. memory limit per test: 65536 KB input: standard output: standard You must have heard that the Chinese culture is quite differ

大数 卡特兰数 #include #include #include #include #include using namespace std; #define sf scanf #define pf printf #define rep(i,n) for(int (i)=0;(i)<(n);(i)++) #define dbg(x) cerr << "Line:"