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poj 1171 Letter Game

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poj 1171 Letter Game

#include <iostream>#include <cstdlib>#include <cstring>#include <cstdio>using namespace std;char pre1[30] = "qwertyuiopasdfghjklzxcvbnm";int pre2[30] ={ 7, 6, 1, 2, 2, 5, 4, 1, 3, 5, 2, 1, 4, 6, 5, 5, 7, 6, 3, 7, 7, 4, 6, 5, 2, 5 };int value[300];char collected[10];char word[40005][10];int n, ans;int cal(char * st, int len){    int ret = 0;    for (int i = 0; i < len; i++)        ret += value[st[i]];    return ret;}bool ok(char *a, char *b){    int len1 = strlen(a);    int len2 = strlen(b);    int len = strlen(collected);    if (len1 + len2 > len)        return false;    bool vis[10];    memset(vis, 0, sizeof(vis));    for (int i = 0; i < len1; i++)    {        bool did = false;        for (int j = 0; j < len; j++) if (collected[j] == a[i] && !vis[j]) {     vis[j] = true;     did = true;     break; }        if (!did) return false;    }    for (int i = 0; i < len2; i++)    {        bool did = false;        for (int j = 0; j < len; j++) if (collected[j] == b[i] && !vis[j]) {     vis[j] = true;     did = true;     break; }        if (!did) return false;    }    return true;}int main(){    for (int i = 0; i < 26; i++)        value[pre1[i]] = pre2[i];    scanf("%s", collected);    int lenc = strlen(collected);    char now[10];    n = 0;    ans = 0;    while (scanf("%s", now), strcmp(".", now))    {        int len = strlen(now);        if (len > lenc || !ok(now, "")) continue;        ans = max(ans, cal(now, len));        if (len <= lenc / 2 + (lenc & 1)) strcpy(word[n++], now);    }    for (int i = 0; i < n - 1; i++)        for (int j = i; j < n; j++) if (ok(word[i], word[j]))     ans = max(ans, cal(word[i], strlen(word[i])) + cal(word[j], strlen(word[j])));    printf("%dn", ans);    return 0;}
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