这一帖,诡异!!!

P1435 [IOI2000] 回文字串

QAQ
by world_execute @ 2019-08-08 08:51:44


你试试把提到外面去试试
by world_execute @ 2019-08-08 08:55:43


或者每次用memset进行初始化
by world_execute @ 2019-08-08 08:57:00


可能会出现不从f[i][i]开始的转移
by world_execute @ 2019-08-08 08:57:56


这个时候在里面的f数组没有被清空
by world_execute @ 2019-08-08 08:58:46


```cpp //#pragram GCC optimize(2) //#pragram GCC optimize(3) //#pragram GCC optimize("Ofast") #include <bits/stdc++.h> using namespace std; #define Reg register #define Rint register int #define Lint long long int char s[1010]; int f[1010][1010]; int main(){ scanf("%s",s); int n=strlen(s); memset(f,0,sizeof(f)); for(int len=2;len<=n;len++){ for(int i=0;i<=n-len;i++){ int j=i+len-1; if(s[i]==s[j]) f[i][j]=f[i+1][j-1]; else f[i][j]=min(f[i+1][j]+1,f[i][j-1]+1); } } printf("%d",f[0][n-1]); return 0; } ```
by world_execute @ 2019-08-08 08:59:14


每次用memset初始化一下就好了呢QAQ
by world_execute @ 2019-08-08 09:01:20


https://www.luogu.org/record/22354770
by world_execute @ 2019-08-08 09:01:29


@[world_execute](/space/show?uid=115196) %%%Orz
by 良知 @ 2019-08-08 09:02:54


$$ \color{white}\large\mathtt{Orz} $$
by momentous @ 2019-08-08 09:07:41


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