oj.uz

Submission #275819

# Submission time Handle Problem Language Result Execution time Memory
275819 2020-08-20T07:53:10 Z Fasho Dynamic Diameter (CEOI19_diameter) C++14
24 / 100
 5000 ms 10616 KB 
#include <bits/stdc++.h>
#define N 100005
#define ll long long int
#define fo(i,x,y)	for(int i=x;i<=y;i++)
#define fs(ar,n) fo(i,1,n) cin>>ar[i]
#define sp " "
#define fast cin.tie(0);cout.tie(0);ios_base::sync_with_stdio(false)
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define ii pair<int,int>
#define lli pair<ll,ll> 
#define mod 1000000007
using namespace std;

ll n,m,ar[N],sum,t,mki1,mki2,mk;

pair<lli,ll> p[N];

vector<int> v[N];

void f(int ind,int back,int dist)
{
	if(dist>mk)
	{
		mk=dist,
		mki1=ind;
	}
	for(int i=0;i<v[ind].size();i++)
	{
		ll x=p[v[ind][i]].fi.fi;
		if(x==ind)
			x=p[v[ind][i]].fi.se;
		ll y=p[v[ind][i]].se;
		if(x==back)
			continue;
		f(x,ind,dist+y);
	}
}
ll calc()
{
	mk=0;
	f(1,1,0);
	swap(mki1,mki2);
	mk=0;
	f(mki2,mki2,0);
	return mk;
}

int main()
{
	fast;
	ll bos;
	cin>>n>>m>>bos;
	fo(i,1,n-1)
	{
		ll a,b,c;
		cin>>a>>b>>c;
		v[a].pb(i);
		v[b].pb(i);
		p[i]={{a,b},c};
	}

	ll last=0;
	fo(i,1,m)
	{
		ll x, y;
		cin>>x>>y;
		if(i!=1)
		{
			x=(x+last)%(n-1);
			y=(y+last)%bos;
		}
		p[x+1].se=y;
		last=calc();
		// cout<<"[d]"<<sp<<x<<sp<<y<<endl;
		cout<<last<<endl;
	}


}

Compilation message

diameter.cpp: In function 'void f(int, int, int)':
diameter.cpp:30:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |  for(int i=0;i<v[ind].size();i++)
      |              ~^~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2684 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 2 ms 2688 KB Output is correct
7 Correct 3 ms 2688 KB Output is correct
8 Correct 2 ms 2688 KB Output is correct
9 Correct 2 ms 2688 KB Output is correct
10 Correct 3 ms 2688 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 2 ms 2688 KB Output is correct
13 Correct 3 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 3 ms 2688 KB Output is correct
16 Correct 3 ms 2688 KB Output is correct
17 Correct 3 ms 2688 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2684 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 2 ms 2688 KB Output is correct
7 Correct 3 ms 2688 KB Output is correct
8 Correct 2 ms 2688 KB Output is correct
9 Correct 2 ms 2688 KB Output is correct
10 Correct 3 ms 2688 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 2 ms 2688 KB Output is correct
13 Correct 3 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 3 ms 2688 KB Output is correct
16 Correct 3 ms 2688 KB Output is correct
17 Correct 3 ms 2688 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct
19 Correct 227 ms 2816 KB Output is correct
20 Correct 234 ms 2816 KB Output is correct
21 Correct 262 ms 3100 KB Output is correct
22 Correct 367 ms 2936 KB Output is correct
23 Correct 2053 ms 3192 KB Output is correct
24 Correct 2148 ms 3328 KB Output is correct
25 Correct 2269 ms 3200 KB Output is correct
26 Correct 2817 ms 3448 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 3 ms 2688 KB Output is correct
3 Correct 9 ms 2688 KB Output is correct
4 Correct 63 ms 2944 KB Output is correct
5 Correct 284 ms 3832 KB Output is correct
6 Correct 2 ms 2688 KB Output is correct
7 Correct 2 ms 2688 KB Output is correct
8 Correct 6 ms 2688 KB Output is correct
9 Correct 36 ms 2816 KB Output is correct
10 Correct 282 ms 2952 KB Output is correct
11 Correct 1283 ms 4052 KB Output is correct
12 Correct 7 ms 3072 KB Output is correct
13 Correct 23 ms 3072 KB Output is correct
14 Correct 203 ms 3192 KB Output is correct
15 Correct 2040 ms 3612 KB Output is correct
16 Execution timed out 5055 ms 4052 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 2816 KB Output is correct
2 Correct 284 ms 2976 KB Output is correct
3 Correct 1429 ms 3580 KB Output is correct
4 Correct 2983 ms 4216 KB Output is correct
5 Correct 289 ms 3448 KB Output is correct
6 Correct 2795 ms 3580 KB Output is correct
7 Execution timed out 5076 ms 3976 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5088 ms 10616 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2684 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 2 ms 2688 KB Output is correct
7 Correct 3 ms 2688 KB Output is correct
8 Correct 2 ms 2688 KB Output is correct
9 Correct 2 ms 2688 KB Output is correct
10 Correct 3 ms 2688 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 2 ms 2688 KB Output is correct
13 Correct 3 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 3 ms 2688 KB Output is correct
16 Correct 3 ms 2688 KB Output is correct
17 Correct 3 ms 2688 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct
19 Correct 227 ms 2816 KB Output is correct
20 Correct 234 ms 2816 KB Output is correct
21 Correct 262 ms 3100 KB Output is correct
22 Correct 367 ms 2936 KB Output is correct
23 Correct 2053 ms 3192 KB Output is correct
24 Correct 2148 ms 3328 KB Output is correct
25 Correct 2269 ms 3200 KB Output is correct
26 Correct 2817 ms 3448 KB Output is correct
27 Correct 2 ms 2688 KB Output is correct
28 Correct 3 ms 2688 KB Output is correct
29 Correct 9 ms 2688 KB Output is correct
30 Correct 63 ms 2944 KB Output is correct
31 Correct 284 ms 3832 KB Output is correct
32 Correct 2 ms 2688 KB Output is correct
33 Correct 2 ms 2688 KB Output is correct
34 Correct 6 ms 2688 KB Output is correct
35 Correct 36 ms 2816 KB Output is correct
36 Correct 282 ms 2952 KB Output is correct
37 Correct 1283 ms 4052 KB Output is correct
38 Correct 7 ms 3072 KB Output is correct
39 Correct 23 ms 3072 KB Output is correct
40 Correct 203 ms 3192 KB Output is correct
41 Correct 2040 ms 3612 KB Output is correct
42 Execution timed out 5055 ms 4052 KB Time limit exceeded
43 Halted 0 ms 0 KB -