67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
#include <cstdio>
|
|
#include <cstring>
|
|
const int MAXN = 2000 + 123;
|
|
int ap[MAXN], bp[MAXN], as[MAXN], bs[MAXN];
|
|
int f[MAXN][MAXN];
|
|
struct node
|
|
{
|
|
int num, val;
|
|
}q[MAXN];
|
|
inline int min(int x,int y)
|
|
{
|
|
return x<y?x:y;
|
|
}
|
|
inline int max(int x,int y)
|
|
{
|
|
return x>y?x:y;
|
|
}
|
|
int main()
|
|
{
|
|
int T;
|
|
scanf("%d", &T);
|
|
while(T--)
|
|
{
|
|
int t, maxp, w;
|
|
scanf("%d%d%d", &t, &maxp, &w);
|
|
for(int i = 1; i <= t; i++) scanf("%d%d%d%d",&ap[i], &bp[i], &as[i], &bs[i]);
|
|
memset(f, 200, sizeof(f));
|
|
for(int i = 1; i <= w + 1; i++)
|
|
for(int j = 0; j <= min(as[i], maxp); j++)
|
|
{
|
|
f[i][j] = -ap[i] * j;
|
|
}
|
|
for(int i = 2; i <= t; i++)
|
|
{
|
|
for(int j = 0; j <= maxp; j++) f[i][j] = max(f[i][j], f[i-1][j]);
|
|
if(i < w + 2) continue;
|
|
int head = 0, tail = -1;
|
|
q[++tail].num = 0;
|
|
q[tail].val = f[i - w - 1][0];
|
|
for(int j = 1; j <= maxp; j++)
|
|
{
|
|
while(tail >= head && j - q[head].num > as[i]) head++;
|
|
if(head <= tail) f[i][j] = max(f[i][j], q[head].val - (j - q[head].num) * ap[i]);
|
|
while(tail >= head && q[tail].val + (q[tail].num - j) * ap[i] < f[i - w - 1][j]) tail--;
|
|
q[++tail].num = j;
|
|
q[tail].val = f[i- w - 1][j];
|
|
}
|
|
head = 0, tail = -1;
|
|
q[++tail].num = maxp;
|
|
q[tail].val = f[i - w - 1][maxp];
|
|
for(int j = maxp - 1; j >= 0; j--)
|
|
{
|
|
while(tail >= head && q[head].num - j > bs[i]) head++;
|
|
if(head <= tail) f[i][j] = max(f[i][j], q[head].val + (q[head].num - j) * bp[i]);
|
|
while(tail >= head && q[tail].val + (q[tail].num - j) * bp[i] < f[i - w - 1][j]) tail--;
|
|
q[++tail].num = j;
|
|
q[tail].val = f[i - w - 1][j];
|
|
}
|
|
}
|
|
int rmax = 0;
|
|
for(int i = 0; i <= maxp; i++)
|
|
if(f[t][i] > rmax) rmax = f[t][i];
|
|
printf("%d\n", rmax);
|
|
}
|
|
return 0;
|
|
}
|