Created
July 31, 2014 20:52
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SPOJ Desining T-Shirts, ArgCamp14
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| #include <bits/stdc++.h> | |
| #define MAX 1000000 | |
| using namespace std; | |
| struct trie{ | |
| map<char, int> sig; | |
| bool termina; | |
| int a, b; | |
| }; | |
| trie t[MAX]; | |
| int n = 1; | |
| void init() { | |
| for(int i = 0; i < MAX; i++) | |
| t[i].sig.clear(), t[i].termina = false, t[i].a = 0, t[i].b = 0; | |
| } | |
| void insertar(string cad, bool team) { | |
| int pos = 0; | |
| for (int i = 0; i < cad.size(); i++) { | |
| char car = cad[i]; | |
| if(t[pos].sig.find(car) == t[pos].sig.end()) | |
| t[pos].sig[car] = n++; | |
| pos = t[pos].sig[car]; | |
| if(team)t[pos].a++; | |
| else t[pos].b++; | |
| } | |
| t[pos].termina = true; | |
| } | |
| int ans; | |
| void dfs(int pos) { | |
| ans += min(t[pos].a, t[pos].b); | |
| for(map<char, int>::iterator it = t[pos].sig.begin(); it != t[pos].sig.end(); it++) | |
| dfs(it->second); | |
| } | |
| int main() { | |
| int n; | |
| scanf("%d", &n); | |
| while(n != -1) { | |
| init(); | |
| string s; | |
| for(int i=0; i<n; i++) { | |
| cin >> s; | |
| insertar(s, false); | |
| } | |
| for(int i=0; i<n; i++) { | |
| cin >> s; | |
| insertar(s, true); | |
| } | |
| ans = 0; | |
| dfs(0); | |
| printf("%d\n", ans); | |
| scanf("%d", &n); | |
| } | |
| return 0; | |
| } |
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