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вернуться в форумI can't understand why I got Wrong Answer? I can't understand why I got Wrong Answer? I use a DP method,and I am afraid that I got wrong answer here. Here's my program: #include<iostream.h> #define MAX 500 void read(); void work(); void write(); long n,f[MAX+1][MAX+1]; int main() { read(); work(); write(); return 0; } void read() { cin>>n; } void work() { unsigned int k,m,i,j; f[0][0]=1; k=n; for (m=1;m<n;m++) { for (i=m;i<=n;i++) { for (j=k;j>0;j--) { f[i][j]+=f[i-m][j-1]; } } } f[n][n]=1; } void write() { unsigned long total,i; total=0; for (i=1;i<=n;i++) { total+=f[n][i]; } cout<<total<<endl; } Thank you! Because insigned long is not enough (-) Why is your program so long? Послано XmYjd 16 ноя 2006 13:36 program ural1017; var q:array[0..500]of int64; n,i,j:integer; begin fillchar(q,sizeof(q),0); readln(n); q[0]:=1; for i:=1 to n do for j:=n downto i do inc(q[j],q[j-i]); writeln(q[n]-1); end. |
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