Submission #116340

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
116340	2019-06-12T10:01:50 Z	shayan_p	Arranging Tickets (JOI17_arranging_tickets)	C++14	100 / 100	2781 ms	38800 KB

arranging_tickets

// High above the clouds there is a rainbow...

#include<bits/stdc++.h>

#define F first
#define S second
#define PB push_back
#define sz(s) int((s).size())
#define bit(n,k) (((n)>>(k))&1)

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<int,ll> pil;

const int maxn=2e5+10,SQ=50;
const ll inf=1e18;

int a[maxn],b[maxn],_a[maxn],_b[maxn];
ll c[maxn],arr[maxn],arr2[maxn];

int pp[maxn];

vector<pil>v[maxn];
priority_queue<pil> pq;

int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);

    srand(time(0));
    
    int n,m; cin>>n>>m;
    for(int i=0;i<m;i++){
	cin>>_a[i]>>_b[i]>>c[i], --_a[i],--_b[i];
    }
    for(int i=0;i<n;i++){
	pp[i]=i;
    }
    random_shuffle(pp,pp+n);

    ll ans=inf;
    
    for(int w=0;w<min(SQ,n);w++){
	
	memset(arr,0,sizeof arr);
	memset(arr2,0,sizeof arr2);
	for(int i=0;i<n;i++){
	    v[i].clear();
	}
	while(sz(pq)){
	    pq.pop();
	}
	
	for(int i=0;i<m;i++){
	    a[i]=(_a[i]+pp[w])%n, b[i]=(_b[i]+pp[w])%n;
	    if(a[i]>b[i]) swap(a[i],b[i]);
	    v[a[i]].PB({b[i],c[i]});
	    arr[a[i]]+=c[i], arr[b[i]]-=c[i];
	}
	for(int i=1;i<n;i++){
	    arr[i]+=arr[i-1];
	}
	for(int i=0;i<n;i++){
	    arr[i]=(1+arr[i])/2;
	}
	
	ll cnt=0,nw=0;
	for(int i=0;i<n;i++){
	    for(auto x:v[i]){
		pq.push(x);	
	    }
	    nw+=arr2[i];
	    
	    while(arr[i]-nw>0){
		pil x=pq.top();
		pq.pop();
		
		ll num= min(arr[i]-nw,x.S);
		x.S-=num, nw+=num, arr2[x.F]-=num, cnt+=num;
		if(x.S>0) pq.push(x);
	    }
	}

	ans=min(ans,cnt);
    }
    return cout<<ans<<endl,0;
}
// Deathly mistakes:
//  * Read the problem curfully.
//  * Check maxn.
//  * Overflows.

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	8192 KB	Output is correct
2	Correct	12 ms	8192 KB	Output is correct
3	Correct	12 ms	8192 KB	Output is correct
4	Correct	11 ms	8192 KB	Output is correct
5	Correct	11 ms	8192 KB	Output is correct
6	Correct	11 ms	8320 KB	Output is correct
7	Correct	14 ms	8192 KB	Output is correct
8	Correct	12 ms	8192 KB	Output is correct
9	Correct	11 ms	8192 KB	Output is correct
10	Correct	13 ms	8192 KB	Output is correct
11	Correct	12 ms	8192 KB	Output is correct
12	Correct	12 ms	8220 KB	Output is correct
13	Correct	12 ms	8244 KB	Output is correct
14	Correct	11 ms	8192 KB	Output is correct
15	Correct	11 ms	8192 KB	Output is correct

Subtask #2
35.0 / 35.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	8192 KB	Output is correct
2	Correct	12 ms	8192 KB	Output is correct
3	Correct	12 ms	8192 KB	Output is correct
4	Correct	11 ms	8192 KB	Output is correct
5	Correct	11 ms	8192 KB	Output is correct
6	Correct	11 ms	8320 KB	Output is correct
7	Correct	14 ms	8192 KB	Output is correct
8	Correct	12 ms	8192 KB	Output is correct
9	Correct	11 ms	8192 KB	Output is correct
10	Correct	13 ms	8192 KB	Output is correct
11	Correct	12 ms	8192 KB	Output is correct
12	Correct	12 ms	8220 KB	Output is correct
13	Correct	12 ms	8244 KB	Output is correct
14	Correct	11 ms	8192 KB	Output is correct
15	Correct	11 ms	8192 KB	Output is correct
16	Correct	16 ms	8192 KB	Output is correct
17	Correct	17 ms	8192 KB	Output is correct
18	Correct	18 ms	8192 KB	Output is correct
19	Correct	17 ms	8192 KB	Output is correct
20	Correct	17 ms	8320 KB	Output is correct
21	Correct	18 ms	8320 KB	Output is correct
22	Correct	17 ms	8192 KB	Output is correct
23	Correct	17 ms	8192 KB	Output is correct
24	Correct	18 ms	8320 KB	Output is correct
25	Correct	18 ms	8420 KB	Output is correct
26	Correct	17 ms	8364 KB	Output is correct
27	Correct	17 ms	8320 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	8192 KB	Output is correct
2	Correct	12 ms	8192 KB	Output is correct
3	Correct	12 ms	8192 KB	Output is correct
4	Correct	11 ms	8192 KB	Output is correct
5	Correct	11 ms	8192 KB	Output is correct
6	Correct	11 ms	8320 KB	Output is correct
7	Correct	14 ms	8192 KB	Output is correct
8	Correct	12 ms	8192 KB	Output is correct
9	Correct	11 ms	8192 KB	Output is correct
10	Correct	13 ms	8192 KB	Output is correct
11	Correct	12 ms	8192 KB	Output is correct
12	Correct	12 ms	8220 KB	Output is correct
13	Correct	12 ms	8244 KB	Output is correct
14	Correct	11 ms	8192 KB	Output is correct
15	Correct	11 ms	8192 KB	Output is correct
16	Correct	16 ms	8192 KB	Output is correct
17	Correct	17 ms	8192 KB	Output is correct
18	Correct	18 ms	8192 KB	Output is correct
19	Correct	17 ms	8192 KB	Output is correct
20	Correct	17 ms	8320 KB	Output is correct
21	Correct	18 ms	8320 KB	Output is correct
22	Correct	17 ms	8192 KB	Output is correct
23	Correct	17 ms	8192 KB	Output is correct
24	Correct	18 ms	8320 KB	Output is correct
25	Correct	18 ms	8420 KB	Output is correct
26	Correct	17 ms	8364 KB	Output is correct
27	Correct	17 ms	8320 KB	Output is correct
28	Correct	37 ms	8676 KB	Output is correct
29	Correct	36 ms	8824 KB	Output is correct
30	Correct	40 ms	8696 KB	Output is correct
31	Correct	39 ms	8824 KB	Output is correct
32	Correct	39 ms	9004 KB	Output is correct
33	Correct	37 ms	8824 KB	Output is correct
34	Correct	71 ms	8828 KB	Output is correct
35	Correct	39 ms	9000 KB	Output is correct
36	Correct	37 ms	8824 KB	Output is correct
37	Correct	35 ms	8480 KB	Output is correct
38	Correct	35 ms	8536 KB	Output is correct
39	Correct	34 ms	8448 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	8192 KB	Output is correct
2	Correct	12 ms	8192 KB	Output is correct
3	Correct	12 ms	8192 KB	Output is correct
4	Correct	11 ms	8192 KB	Output is correct
5	Correct	11 ms	8192 KB	Output is correct
6	Correct	11 ms	8320 KB	Output is correct
7	Correct	14 ms	8192 KB	Output is correct
8	Correct	12 ms	8192 KB	Output is correct
9	Correct	11 ms	8192 KB	Output is correct
10	Correct	13 ms	8192 KB	Output is correct
11	Correct	12 ms	8192 KB	Output is correct
12	Correct	12 ms	8220 KB	Output is correct
13	Correct	12 ms	8244 KB	Output is correct
14	Correct	11 ms	8192 KB	Output is correct
15	Correct	11 ms	8192 KB	Output is correct
16	Correct	16 ms	8192 KB	Output is correct
17	Correct	17 ms	8192 KB	Output is correct
18	Correct	18 ms	8192 KB	Output is correct
19	Correct	17 ms	8192 KB	Output is correct
20	Correct	17 ms	8320 KB	Output is correct
21	Correct	18 ms	8320 KB	Output is correct
22	Correct	17 ms	8192 KB	Output is correct
23	Correct	17 ms	8192 KB	Output is correct
24	Correct	18 ms	8320 KB	Output is correct
25	Correct	18 ms	8420 KB	Output is correct
26	Correct	17 ms	8364 KB	Output is correct
27	Correct	17 ms	8320 KB	Output is correct
28	Correct	37 ms	8676 KB	Output is correct
29	Correct	36 ms	8824 KB	Output is correct
30	Correct	40 ms	8696 KB	Output is correct
31	Correct	39 ms	8824 KB	Output is correct
32	Correct	39 ms	9004 KB	Output is correct
33	Correct	37 ms	8824 KB	Output is correct
34	Correct	71 ms	8828 KB	Output is correct
35	Correct	39 ms	9000 KB	Output is correct
36	Correct	37 ms	8824 KB	Output is correct
37	Correct	35 ms	8480 KB	Output is correct
38	Correct	35 ms	8536 KB	Output is correct
39	Correct	34 ms	8448 KB	Output is correct
40	Correct	2261 ms	26040 KB	Output is correct
41	Correct	2339 ms	26080 KB	Output is correct
42	Correct	2354 ms	27124 KB	Output is correct
43	Correct	2284 ms	33648 KB	Output is correct
44	Correct	2315 ms	31756 KB	Output is correct
45	Correct	2168 ms	38800 KB	Output is correct
46	Correct	2210 ms	25972 KB	Output is correct
47	Correct	2029 ms	25520 KB	Output is correct
48	Correct	2167 ms	26420 KB	Output is correct
49	Correct	1362 ms	14960 KB	Output is correct
50	Correct	1818 ms	16368 KB	Output is correct
51	Correct	1482 ms	15980 KB	Output is correct

Subtask #5
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	8192 KB	Output is correct
2	Correct	12 ms	8192 KB	Output is correct
3	Correct	12 ms	8192 KB	Output is correct
4	Correct	11 ms	8192 KB	Output is correct
5	Correct	11 ms	8192 KB	Output is correct
6	Correct	11 ms	8320 KB	Output is correct
7	Correct	14 ms	8192 KB	Output is correct
8	Correct	12 ms	8192 KB	Output is correct
9	Correct	11 ms	8192 KB	Output is correct
10	Correct	13 ms	8192 KB	Output is correct
11	Correct	12 ms	8192 KB	Output is correct
12	Correct	12 ms	8220 KB	Output is correct
13	Correct	12 ms	8244 KB	Output is correct
14	Correct	11 ms	8192 KB	Output is correct
15	Correct	11 ms	8192 KB	Output is correct
16	Correct	16 ms	8192 KB	Output is correct
17	Correct	17 ms	8192 KB	Output is correct
18	Correct	18 ms	8192 KB	Output is correct
19	Correct	17 ms	8192 KB	Output is correct
20	Correct	17 ms	8320 KB	Output is correct
21	Correct	18 ms	8320 KB	Output is correct
22	Correct	17 ms	8192 KB	Output is correct
23	Correct	17 ms	8192 KB	Output is correct
24	Correct	18 ms	8320 KB	Output is correct
25	Correct	18 ms	8420 KB	Output is correct
26	Correct	17 ms	8364 KB	Output is correct
27	Correct	17 ms	8320 KB	Output is correct
28	Correct	37 ms	8676 KB	Output is correct
29	Correct	36 ms	8824 KB	Output is correct
30	Correct	40 ms	8696 KB	Output is correct
31	Correct	39 ms	8824 KB	Output is correct
32	Correct	39 ms	9004 KB	Output is correct
33	Correct	37 ms	8824 KB	Output is correct
34	Correct	71 ms	8828 KB	Output is correct
35	Correct	39 ms	9000 KB	Output is correct
36	Correct	37 ms	8824 KB	Output is correct
37	Correct	35 ms	8480 KB	Output is correct
38	Correct	35 ms	8536 KB	Output is correct
39	Correct	34 ms	8448 KB	Output is correct
40	Correct	2261 ms	26040 KB	Output is correct
41	Correct	2339 ms	26080 KB	Output is correct
42	Correct	2354 ms	27124 KB	Output is correct
43	Correct	2284 ms	33648 KB	Output is correct
44	Correct	2315 ms	31756 KB	Output is correct
45	Correct	2168 ms	38800 KB	Output is correct
46	Correct	2210 ms	25972 KB	Output is correct
47	Correct	2029 ms	25520 KB	Output is correct
48	Correct	2167 ms	26420 KB	Output is correct
49	Correct	1362 ms	14960 KB	Output is correct
50	Correct	1818 ms	16368 KB	Output is correct
51	Correct	1482 ms	15980 KB	Output is correct
52	Correct	2659 ms	26080 KB	Output is correct
53	Correct	2643 ms	26788 KB	Output is correct
54	Correct	2781 ms	26220 KB	Output is correct
55	Correct	2592 ms	32616 KB	Output is correct
56	Correct	2465 ms	35720 KB	Output is correct
57	Correct	2483 ms	25888 KB	Output is correct
58	Correct	2494 ms	25500 KB	Output is correct
59	Correct	1452 ms	14960 KB	Output is correct

Submission #116340

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