Seek the Name, Seek the Fame (KMP

题目传送:POJ – 2752

思路:就是每次都去找当前串的最大相同前缀后缀,找到一个后,令该相同前缀后缀为当前串,再循环调用,注意因为kmp的next函数中的最大相同前缀后缀不包含自身,,所以每次都要多输出原串自身长度

AC代码:

#include <cstdio>#include <cstring>#include <algorithm>using namespace std;const int maxn = 1000005;char s[maxn];int next[maxn];int ans[maxn];int len;void get_next(char *s) {next[0] = -1;int i = 0, j = -1;while(i < len) {if(j == -1 || s[i] == s[j]) next[++ i] = ++ j;else j = next[j];}}int main() {while(scanf("%s", s) != EOF) {int tot = 0;len = strlen(s);get_next(s);int tmp = next[len];if(tmp != 0) {ans[tot ++] = tmp;}while(next[tmp] > 0) {tmp = next[tmp];ans[tot ++] = tmp;}for(int i = tot – 1; i >= 0; i –) {printf("%d ", ans[i]);}printf("%d\n", len);}return 0;}

接受失败等于回归真实的自我,接受失败等于打破完美的面具,

Seek the Name, Seek the Fame (KMP

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