delete pics to save space

1.4302.cpp

@@ -0,0 +1,48 @@
+#include<cstdio>
+#include<cstring>
+#include<algorithm>
+using namespace std;
+int n,nd[105],f[105][105],pre[105][105],nxt[105][105];
+char s[105];
+int main()
+{
+	#ifdef local
+	freopen("pro.in","r",stdin);
+	#endif
+	for(int i=2;i<=9;i++) nd[i]=1;
+	for(int i=10;i<=99;i++) nd[i]=2;
+	nd[100]=3;
+	scanf("%s",s+1); n=strlen(s+1);
+	memset(f,0x3f,sizeof(f));
+	for(int i=1;i<=n;i++) f[i][i]=1;
+	for(int bg=1;bg<=n;bg++)
+	{
+		nxt[bg][0]=0;
+		for(int i=2,j=0;i<=n-bg+1;i++)
+		{
+			while(j>0&&s[bg+i-1]!=s[bg+j])
+				j=nxt[bg][j-1];
+			if(s[bg+i-1]==s[bg+j]) j++;
+			nxt[bg][i-1]=j;
+		}
+	}
+	for(int len=2;len<=n;len++)
+		for(int i=1;i+len-1<=n;i++)
+		{
+			int j=i+len-1;
+			int &p=pre[i][j];
+			p=i;
+			for(int k=i+1;k<j;k++) if(f[i][p]+f[p+1][j]>f[i][k]+f[k+1][j]) p=k;
+			f[i][j]=f[i][p]+f[p+1][j];
+			int v=len-nxt[i][len-1];
+			if(len%v==0)
+				for(int k=1;v*k<=len;k++)
+					if(len%(v*k)==0&&len/(v*k)>1&&f[i][i+v*k-1]+2+nd[len/(v*k)]<f[i][j])
+					{
+						f[i][j]=f[i][i+v*k-1]+2+nd[len/(v*k)];
+						p=-v*k;
+					}
+		}
+	printf("%d\n",f[1][n]);
+	return 0;
+}