oj.uz

Submission #486126

# Submission time Handle Problem Language Result Execution time Memory
486126 2021-11-10T15:08:23 Z Koosha_mv Toll (BOI17_toll) C++14
15 / 100
 3000 ms 103416 KB 
#include <bits/stdc++.h>
using namespace std;
#define erorp(x) cout<<#x<<"={"<<(x.F)<<" , "<<x.S<<"}"<<endl
#define print(v,r) f(i,0,r) cout<<v[i]<<" "; cout<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define Add(x,y) x=(x+y)%mod
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first

const int N=1e5+9,sq=500,K=5,inf=1e9;

int n,k,m,q,a[N],dp[N],dist[N][sq];
vector<pair<int,int> > g[N];

void tsft(int u,int v){
	f(i,v*k,v*k+k) dp[i]=inf;
	f(i,u*k,u*k+k){
		f(j,v,v*k+k){
			minm(dp[j],dp[i]+dist[i][j-i]);
		}
	}	
}

main(){
	ios:: sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin>>k>>n>>m>>q;
	f(i,0,m){
		int u,v,t;
		cin>>u>>v>>t;
		g[u].pb(mp(v,t));
	}
	f_(i,n-1,0){
		dist[i][0]=0;
		f(j,1,sq){
			dist[i][j]=inf;
			f(p,0,g[i].size()){
				if(g[i][p].F<=i+j){
					minm(dist[i][j],dist[g[i][p].F][j-(g[i][p].F-i)]+g[i][p].S);
				}
			}
		}
	}
	f(prt,0,q){
		int a,b,u,v;
		cin>>a>>b;
		u=a/k,v=b/k;
		f(i,u*k,u*k+k) dp[i]=inf;
		dp[a]=0;
		while(u!=v){
			int nxt=min(v,u+sq/k-1);
			tsft(u,nxt);
			u=nxt;
		}
		cout<<((dp[b] == inf || b<a) ? -1 : dp[b])<<'\n';
	}
}
/*
5 14 5 5
0 5 9
5 12 10
0 7 7
7 12 8
4 7 10
0 12
0 5
0 7
7 12
0 13
*/

Compilation message

toll.cpp:34:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   34 | main(){
      | ^~~~
toll.cpp: In function 'int main()':
toll.cpp:7:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   46 |    f(p,0,g[i].size()){
      |      ~~~~~~~~~~~~~~~           
toll.cpp:46:4: note: in expansion of macro 'f'
   46 |    f(p,0,g[i].size()){
      |    ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 112 ms 102244 KB Output is correct
2 Correct 1 ms 2636 KB Output is correct
3 Correct 1 ms 2636 KB Output is correct
4 Correct 1 ms 2636 KB Output is correct
5 Correct 3 ms 4556 KB Output is correct
6 Correct 5 ms 4668 KB Output is correct
7 Correct 3 ms 4556 KB Output is correct
8 Correct 117 ms 102244 KB Output is correct
9 Correct 115 ms 102212 KB Output is correct
10 Correct 68 ms 100612 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3085 ms 102336 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2636 KB Output is correct
2 Correct 1 ms 2688 KB Output is correct
3 Correct 1 ms 2636 KB Output is correct
4 Correct 1 ms 2636 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 3 ms 4556 KB Output is correct
7 Correct 4 ms 4556 KB Output is correct
8 Correct 8 ms 4684 KB Output is correct
9 Correct 7 ms 4648 KB Output is correct
10 Correct 104 ms 102192 KB Output is correct
11 Correct 240 ms 102256 KB Output is correct
12 Correct 359 ms 103160 KB Output is correct
13 Correct 374 ms 103416 KB Output is correct
14 Correct 345 ms 102940 KB Output is correct
15 Correct 238 ms 62780 KB Output is correct
16 Correct 220 ms 62724 KB Output is correct

Subtask #4
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2636 KB Output is correct
2 Correct 1 ms 2688 KB Output is correct
3 Correct 1 ms 2636 KB Output is correct
4 Correct 1 ms 2636 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 3 ms 4556 KB Output is correct
7 Correct 4 ms 4556 KB Output is correct
8 Correct 8 ms 4684 KB Output is correct
9 Correct 7 ms 4648 KB Output is correct
10 Correct 104 ms 102192 KB Output is correct
11 Correct 240 ms 102256 KB Output is correct
12 Correct 359 ms 103160 KB Output is correct
13 Correct 374 ms 103416 KB Output is correct
14 Correct 345 ms 102940 KB Output is correct
15 Correct 238 ms 62780 KB Output is correct
16 Correct 220 ms 62724 KB Output is correct
17 Correct 2411 ms 102416 KB Output is correct
18 Correct 1 ms 2636 KB Output is correct
19 Correct 1 ms 2636 KB Output is correct
20 Correct 1 ms 2636 KB Output is correct
21 Correct 1 ms 2636 KB Output is correct
22 Correct 1 ms 2636 KB Output is correct
23 Correct 4 ms 4684 KB Output is correct
24 Correct 9 ms 4584 KB Output is correct
25 Correct 16 ms 4716 KB Output is correct
26 Correct 14 ms 4712 KB Output is correct
27 Correct 117 ms 102332 KB Output is correct
28 Execution timed out 3084 ms 103184 KB Time limit exceeded
29 Halted 0 ms 0 KB -

Subtask #5
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 112 ms 102244 KB Output is correct
2 Correct 1 ms 2636 KB Output is correct
3 Correct 1 ms 2636 KB Output is correct
4 Correct 1 ms 2636 KB Output is correct
5 Correct 3 ms 4556 KB Output is correct
6 Correct 5 ms 4668 KB Output is correct
7 Correct 3 ms 4556 KB Output is correct
8 Correct 117 ms 102244 KB Output is correct
9 Correct 115 ms 102212 KB Output is correct
10 Correct 68 ms 100612 KB Output is correct
11 Execution timed out 3085 ms 102336 KB Time limit exceeded
12 Halted 0 ms 0 KB -