답안 #99323 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
99323	2019-03-02T14:28:37 Z	TadijaSebez	Arranging Tickets (JOI17_arranging_tickets)	C++11	100 / 100	2001 ms	13792 KB

arranging_tickets

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N=200050;
int n,m,a[N],b[N],c[N];
int heap[N],tsz;
void Push(int x)
{
	++tsz;int i;
	for(i=tsz;i>1 && b[x]>b[heap[i>>1]];i>>=1) heap[i]=heap[i>>1];
	heap[i]=x;
}
void Pop()
{
	int tmp=heap[tsz--],i,j;
	for(i=1;i*2<=tsz;i=j)
	{
		j=i*2;
		if(j!=tsz && b[heap[j+1]]>b[heap[j]]) j++;
		if(b[heap[j]]>b[tmp]) heap[i]=heap[j];
		else break;
	}
	heap[i]=tmp;
}
ll sum[N],need[N],add[N],ost[N];
vector<int> ids[N];
bool Check(ll mid, int pos, ll flip)
{
	for(int i=1;i<=n;i++) add[i]=0;
	for(int i=1;i<pos;i++) need[i]=(sum[i]+flip-mid+1)/2;
	need[pos]=flip;
	tsz=0;
	ll done=0;
	for(int i=1;i<=pos;i++)
	{
		for(int j:ids[i]) if(a[j]<=pos && pos<b[j]) Push(j),ost[j]=c[j];
		while(tsz && done<need[i])
		{
			int j=heap[1];
			ll work=min(ost[j],need[i]-done);
			done+=work;
			ost[j]-=work;
			add[1]+=work;
			add[a[j]]-=2*work;
			add[b[j]]+=2*work;
			if(!ost[j]) Pop();
		}
		if(done<need[i]) return 0;
	}
	for(int i=1;i<=n;i++)
	{
		add[i]+=add[i-1];
		if(add[i]+sum[i]>mid) return 0;
	}
	return 1;
}
int main()
{
	scanf("%i %i",&n,&m);
	for(int i=1;i<=m;i++)
	{
		scanf("%i %i %i",&a[i],&b[i],&c[i]);
		if(a[i]>b[i]) swap(a[i],b[i]);
		sum[a[i]]+=c[i];
		sum[b[i]]-=c[i];
		ids[a[i]].push_back(i);
	}
	int fir=0,las=0;
	for(int i=1;i<=n;i++)
	{
		sum[i]+=sum[i-1];
		if(sum[i]>sum[fir]) fir=i;
		if(sum[i]==sum[fir]) las=i;
	}
	ll top=sum[fir],bot=0,mid,ans=top;
	while(top>=bot)
	{
		mid=top+bot>>1;
		if(Check(mid,fir,sum[fir]-mid)||Check(mid,fir,sum[fir]-mid+1)
		 ||Check(mid,las,sum[las]-mid)||Check(mid,las,sum[las]-mid+1)) ans=mid,top=mid-1;
		else bot=mid+1;
	}
	printf("%lld\n",ans);
	return 0;
}

Compilation message

arranging_tickets.cpp: In function 'int main()':
arranging_tickets.cpp:59:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i",&n,&m);
  ~~~~~^~~~~~~~~~~~~~~
arranging_tickets.cpp:62:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%i %i %i",&a[i],&b[i],&c[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	4992 KB	Output is correct
2	Correct	6 ms	4992 KB	Output is correct
3	Correct	7 ms	5120 KB	Output is correct
4	Correct	8 ms	5120 KB	Output is correct
5	Correct	7 ms	5000 KB	Output is correct
6	Correct	6 ms	4992 KB	Output is correct
7	Correct	6 ms	5120 KB	Output is correct
8	Correct	6 ms	5120 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	6 ms	4992 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	6 ms	5120 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	8 ms	5248 KB	Output is correct

Subtask #2
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	4992 KB	Output is correct
2	Correct	6 ms	4992 KB	Output is correct
3	Correct	7 ms	5120 KB	Output is correct
4	Correct	8 ms	5120 KB	Output is correct
5	Correct	7 ms	5000 KB	Output is correct
6	Correct	6 ms	4992 KB	Output is correct
7	Correct	6 ms	5120 KB	Output is correct
8	Correct	6 ms	5120 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	6 ms	4992 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	6 ms	5120 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	8 ms	5248 KB	Output is correct
16	Correct	8 ms	5120 KB	Output is correct
17	Correct	8 ms	5120 KB	Output is correct
18	Correct	8 ms	5120 KB	Output is correct
19	Correct	7 ms	5120 KB	Output is correct
20	Correct	8 ms	5120 KB	Output is correct
21	Correct	8 ms	5120 KB	Output is correct
22	Correct	7 ms	5120 KB	Output is correct
23	Correct	7 ms	5120 KB	Output is correct
24	Correct	6 ms	5120 KB	Output is correct
25	Correct	7 ms	5120 KB	Output is correct
26	Correct	8 ms	5120 KB	Output is correct
27	Correct	7 ms	5120 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	4992 KB	Output is correct
2	Correct	6 ms	4992 KB	Output is correct
3	Correct	7 ms	5120 KB	Output is correct
4	Correct	8 ms	5120 KB	Output is correct
5	Correct	7 ms	5000 KB	Output is correct
6	Correct	6 ms	4992 KB	Output is correct
7	Correct	6 ms	5120 KB	Output is correct
8	Correct	6 ms	5120 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	6 ms	4992 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	6 ms	5120 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	8 ms	5248 KB	Output is correct
16	Correct	8 ms	5120 KB	Output is correct
17	Correct	8 ms	5120 KB	Output is correct
18	Correct	8 ms	5120 KB	Output is correct
19	Correct	7 ms	5120 KB	Output is correct
20	Correct	8 ms	5120 KB	Output is correct
21	Correct	8 ms	5120 KB	Output is correct
22	Correct	7 ms	5120 KB	Output is correct
23	Correct	7 ms	5120 KB	Output is correct
24	Correct	6 ms	5120 KB	Output is correct
25	Correct	7 ms	5120 KB	Output is correct
26	Correct	8 ms	5120 KB	Output is correct
27	Correct	7 ms	5120 KB	Output is correct
28	Correct	10 ms	5248 KB	Output is correct
29	Correct	11 ms	5248 KB	Output is correct
30	Correct	11 ms	5248 KB	Output is correct
31	Correct	11 ms	5248 KB	Output is correct
32	Correct	12 ms	5248 KB	Output is correct
33	Correct	11 ms	5248 KB	Output is correct
34	Correct	11 ms	5248 KB	Output is correct
35	Correct	12 ms	5120 KB	Output is correct
36	Correct	12 ms	5248 KB	Output is correct
37	Correct	9 ms	5248 KB	Output is correct
38	Correct	10 ms	5376 KB	Output is correct
39	Correct	8 ms	5376 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	4992 KB	Output is correct
2	Correct	6 ms	4992 KB	Output is correct
3	Correct	7 ms	5120 KB	Output is correct
4	Correct	8 ms	5120 KB	Output is correct
5	Correct	7 ms	5000 KB	Output is correct
6	Correct	6 ms	4992 KB	Output is correct
7	Correct	6 ms	5120 KB	Output is correct
8	Correct	6 ms	5120 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	6 ms	4992 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	6 ms	5120 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	8 ms	5248 KB	Output is correct
16	Correct	8 ms	5120 KB	Output is correct
17	Correct	8 ms	5120 KB	Output is correct
18	Correct	8 ms	5120 KB	Output is correct
19	Correct	7 ms	5120 KB	Output is correct
20	Correct	8 ms	5120 KB	Output is correct
21	Correct	8 ms	5120 KB	Output is correct
22	Correct	7 ms	5120 KB	Output is correct
23	Correct	7 ms	5120 KB	Output is correct
24	Correct	6 ms	5120 KB	Output is correct
25	Correct	7 ms	5120 KB	Output is correct
26	Correct	8 ms	5120 KB	Output is correct
27	Correct	7 ms	5120 KB	Output is correct
28	Correct	10 ms	5248 KB	Output is correct
29	Correct	11 ms	5248 KB	Output is correct
30	Correct	11 ms	5248 KB	Output is correct
31	Correct	11 ms	5248 KB	Output is correct
32	Correct	12 ms	5248 KB	Output is correct
33	Correct	11 ms	5248 KB	Output is correct
34	Correct	11 ms	5248 KB	Output is correct
35	Correct	12 ms	5120 KB	Output is correct
36	Correct	12 ms	5248 KB	Output is correct
37	Correct	9 ms	5248 KB	Output is correct
38	Correct	10 ms	5376 KB	Output is correct
39	Correct	8 ms	5376 KB	Output is correct
40	Correct	371 ms	13252 KB	Output is correct
41	Correct	437 ms	13660 KB	Output is correct
42	Correct	364 ms	12664 KB	Output is correct
43	Correct	628 ms	13008 KB	Output is correct
44	Correct	308 ms	13560 KB	Output is correct
45	Correct	683 ms	12536 KB	Output is correct
46	Correct	401 ms	12860 KB	Output is correct
47	Correct	113 ms	13176 KB	Output is correct
48	Correct	164 ms	12468 KB	Output is correct
49	Correct	148 ms	11384 KB	Output is correct
50	Correct	100 ms	12344 KB	Output is correct
51	Correct	108 ms	11748 KB	Output is correct

Subtask #5
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	4992 KB	Output is correct
2	Correct	6 ms	4992 KB	Output is correct
3	Correct	7 ms	5120 KB	Output is correct
4	Correct	8 ms	5120 KB	Output is correct
5	Correct	7 ms	5000 KB	Output is correct
6	Correct	6 ms	4992 KB	Output is correct
7	Correct	6 ms	5120 KB	Output is correct
8	Correct	6 ms	5120 KB	Output is correct
9	Correct	7 ms	4992 KB	Output is correct
10	Correct	7 ms	5120 KB	Output is correct
11	Correct	6 ms	4992 KB	Output is correct
12	Correct	7 ms	5120 KB	Output is correct
13	Correct	6 ms	5120 KB	Output is correct
14	Correct	7 ms	5120 KB	Output is correct
15	Correct	8 ms	5248 KB	Output is correct
16	Correct	8 ms	5120 KB	Output is correct
17	Correct	8 ms	5120 KB	Output is correct
18	Correct	8 ms	5120 KB	Output is correct
19	Correct	7 ms	5120 KB	Output is correct
20	Correct	8 ms	5120 KB	Output is correct
21	Correct	8 ms	5120 KB	Output is correct
22	Correct	7 ms	5120 KB	Output is correct
23	Correct	7 ms	5120 KB	Output is correct
24	Correct	6 ms	5120 KB	Output is correct
25	Correct	7 ms	5120 KB	Output is correct
26	Correct	8 ms	5120 KB	Output is correct
27	Correct	7 ms	5120 KB	Output is correct
28	Correct	10 ms	5248 KB	Output is correct
29	Correct	11 ms	5248 KB	Output is correct
30	Correct	11 ms	5248 KB	Output is correct
31	Correct	11 ms	5248 KB	Output is correct
32	Correct	12 ms	5248 KB	Output is correct
33	Correct	11 ms	5248 KB	Output is correct
34	Correct	11 ms	5248 KB	Output is correct
35	Correct	12 ms	5120 KB	Output is correct
36	Correct	12 ms	5248 KB	Output is correct
37	Correct	9 ms	5248 KB	Output is correct
38	Correct	10 ms	5376 KB	Output is correct
39	Correct	8 ms	5376 KB	Output is correct
40	Correct	371 ms	13252 KB	Output is correct
41	Correct	437 ms	13660 KB	Output is correct
42	Correct	364 ms	12664 KB	Output is correct
43	Correct	628 ms	13008 KB	Output is correct
44	Correct	308 ms	13560 KB	Output is correct
45	Correct	683 ms	12536 KB	Output is correct
46	Correct	401 ms	12860 KB	Output is correct
47	Correct	113 ms	13176 KB	Output is correct
48	Correct	164 ms	12468 KB	Output is correct
49	Correct	148 ms	11384 KB	Output is correct
50	Correct	100 ms	12344 KB	Output is correct
51	Correct	108 ms	11748 KB	Output is correct
52	Correct	708 ms	13792 KB	Output is correct
53	Correct	1045 ms	13048 KB	Output is correct
54	Correct	1989 ms	13520 KB	Output is correct
55	Correct	569 ms	13560 KB	Output is correct
56	Correct	1440 ms	12868 KB	Output is correct
57	Correct	2001 ms	13176 KB	Output is correct
58	Correct	834 ms	13560 KB	Output is correct
59	Correct	1077 ms	11004 KB	Output is correct

답안 #99323

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 35.0 / 35.0

Subtask #3 20.0 / 20.0

Subtask #4 20.0 / 20.0

Subtask #5 15.0 / 15.0

Subtask #1
10.0 / 10.0

Subtask #2
35.0 / 35.0

Subtask #3
20.0 / 20.0

Subtask #4
20.0 / 20.0

Subtask #5
15.0 / 15.0