제출 #634

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
634		gs13068	파일 삭제 (GA3_delete)	C++98	15 / 120	78 ms	118380 KiB

delete

#include<vector>

int indeg[3000];
int p[3000];
int c[3000];
int q[3000];
int qn,K;

int stack[10000];
int stackn,stackm;

int d[3001][10001];
int t[10001];

std::vector<int> graph[3000];

inline void GetPlan(int before,int x)
{
int i,j;
if(K<c[x])
{
stackm=1000000;
for(i=0;i<=K;i++)
{
if(stackm>d[before][i]-i)stackm=d[before][i]-i;
d[x][i]=stackm+i;
}
}
else
{
stackn=stackm=0;
for(i=0;i<c[x];i++)
{
while(stackm-stackn&&stack[stackm-1]>d[before][i]-i)stackm--;
stack[stackm++]=d[before][i]-i;
d[x][i]=stack[stackn]+i;
}
for(i=c[x];i<=K;i++)
{
while(stackm-stackn&&stack[stackm-1]>d[before][i]-i)stackm--;
stack[stackm++]=d[before][i]-i;
d[x][i]=stack[stackn]+i;
if(d[x][i]>d[before][i-c[x]]+1)d[x][i]=d[before][i-c[x]]+1;
if(stack[stackn]==d[before][i-c[x]]-(i-c[x]))stackn++;
}
}
for(j=0;j<graph[x].size();j++)
{
GetPlan(before,graph[x][j]);
before=graph[x][j];
if(K<c[x])
{
stackm=1000000;
for(i=0;i<=K;i++)
{
if(stackm>d[before][i]-i)stackm=d[before][i]-i;
d[x][i]=stackm+i;
}
}
else
{
stackn=stackm=0;
for(i=0;i<c[x];i++)
{
while(stackm-stackn&&stack[stackm-1]>d[before][i]-i)stackm--;
stack[stackm++]=d[before][i]-i;
d[x][i]=stack[stackn]+i;
}
for(i=c[x];i<=K;i++)
{
while(stackm-stackn&&stack[stackm-1]>d[before][i]-i)stackm--;
stack[stackm++]=d[before][i]-i;
d[x][i]=stack[stackn]+i;
if(d[x][i]>d[before][i-c[x]]+1)d[x][i]=d[before][i-c[x]]+1;
if(stack[stackn]==d[before][i-c[x]]-(i-c[x]))stackn++;
}
}
}
}

int DeletePlan(int n,int m,int k,int *a, int *b)
{
int i,j;
K=k;
for(i=0;i<n;i++)c[a[i]]++;
for(i=0;i<m;i++){p[i]=b[i];if(b[i]>=0){indeg[b[i]]++;graph[b[i]].push_back(i);}}
for(i=0;i<m;i++)if(indeg[i]==0)q[qn++]=i;
for(i=0;i<qn;i++)
{
if(p[q[i]]>=0)
{
c[p[q[i]]]+=c[q[i]];
indeg[p[q[i]]]--;
if(indeg[p[q[i]]]==0)q[qn++]=p[q[i]];
}
}
for(i=1;i<=K;i++)d[3000][i]=1000000;
GetPlan(3000,0);
return d[0][K];
}

• Subtask 1: 15 / 15
• Subtask 2: 0 / 25
• Subtask 3: 0 / 35
• Subtask 4: 0 / 45