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Re:WA-> ACIn Reply To:WA-> AC Posted by:spracle_hao at 2008-08-26 15:38:48 通过1850,排除了文件结束符的原因,那这又是什么原因呢?c++,g++??? 附代码: /* Filename: 1496.cpp Author: spracle Created: 2008年08月26日 15时11分05秒 */ #include<iostream> #define min(a,b) ((a)>(b) ? (b) : (a)) using namespace std; const int stdd[11]={0,26,325,2600,14950,65780,230230,657800,1562275,3124550,5311735}; int solve(int m,int n) { if(m==n) return 1; if(m>n) return 0; m=min(m,n-m); double res=1.0; for(int i=1;i<=m;i++) res*=(n+1-i)*1.0/i; return (int)res; } int main() { char s[12]; while(cin>>s) { int ps[12];bool flag=0; int l=strlen(s); for(int i=0;i<l;i++) { ps[i]=s[i]-'a'+1; if(i>=1 && s[i]<=s[i-1]) flag=1; } if(flag) cout<<'0'<<endl; else { int res=0; for(int i=1;i<=l;i++) res+=stdd[i]; for(int j=0;j<l;j++) res-=solve(l-j,26-ps[j]); cout<<res<<endl; } } return 0; } Followed by:
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