代碼如下:
#include <bits/stdc++.h>
using namespace std;
int d[50005];
int main()
{
int n, m, w, p, c;
scanf( "%d%d", &n, &m);
memset( d, 0, sizeof( d));
for ( int i = 1; i <= n; i++){
scanf( "%d%d%d", &w, &p, &c);
if ( w * c >= m){
for ( int j = w; j <= m; j++){
d[j] = max( d[j], d[j - w] + p);
}
}
else{
int x = 1;
while ( x < c){
for ( int j = m; j >= x * w; j--){
d[j] = max( d[j], d[j - x * w] + x * p);
}
c -= x;
x *= 2;
}
for ( int j = m; j >= c * w; j--){
d[j] = max( d[j], d[j - c * w] + c * p);
}
}
}
printf( "%d\n", d[m]);
return 0;
}