http://poj.org/problem?id=2522 #include "iostream" using namespace std; int ans[230][11]; int get( int a, int b ) { int i; if( b == 1 ) return 1; if( ans[a][b] < 0 ) { ans[a][b] = 0; for( i=0; i*b<=a; i++ ) ans[a][b] += get( a-i*b, b-1 ); } return ans[a][b]; } int main() { int cas,n,m,k,s,i,j,t; for( i=0; i<=220; i++ ) for( j=0; j<=10; j++ ) ans[i][j] = -1; cin>>cas; while( cas-- ) { cin>>m>>n>>k; m -= n;s=0;t=1; while( n > 1 ) { for(i=0 ; s + get( m-i*n, n-1 ) < k; i++ ) { s += get( m-i*n, n-1 ); } printf( "%dn", i+t ); t += i; m -= i*n; n--; } printf( "%dn", m+t ); } return 0; }
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