Submission #714847

#	Time	Username	Problem	Language	Result	Execution time	Memory
714847		ajab_01	Toll (BOI17_toll)	C++17	Compilation error	0 ms	0 KiB

toll

#include<bits/stdc++.h>
using namespace std;

const int INF = 1e9 + 9;
const int N = 5e4 + 5;
int SQ = 250;
vector<pair<int , int> > g[N];
int dp[N][SQ] , dis[N] , k , n , m , o , a , b;

int main(){
	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin >> k >> n >> m >> o;
	for(int i = 0 ; i < m ; i++){
		int u , v , w;
		cin >> u >> v >> w;
		g[v].push_back({u , w});
	}

	for(int i = 0 ; i < n ; i++){
		for(int d = 1 ; d < min(n - i , SQ) ; d++){
			int v = i + d;
			dp[i][d] = INF;
			for(pair<int , int> p : g[v]){
				int u = p.first , w = p.second;
				if(u < i) continue;
				dp[i][d] = min(dp[i][d] , dp[i][u - i] + w);
			}
		}
	}

	SQ = 69 + 85 + 1;

	for(int oo = 0 ; oo < o ; oo++){
		cin >> a >> b;
		int vala = a / k , valb = b / k;
		fill(dis + vala * k , dis + (vala + 1) * k , INF);
		dis[a] = 0;
		while(valb - vala >= SQ){
			fill(dis + (vala + SQ - 1) * k , dis + (vala + SQ) * k , INF);
			for(int i = (vala + SQ - 1) * k ; i < (vala + SQ) * k ; i++) for(int j = vala * k ; j < (vala + 1) * k ; j++) dis[i] = min(dis[i] , dis[j] + dp[j][i - j]);
		}
		dis[b] = INF;
		for(int i = vala * k ; i < (vala + 1) * k ; i++) dis[b] = min(dis[b] , dis[i] + dp[i][b - i]);
		(dis[b] == INF ? cout << -1 << '\n' : cout << dis[b] << '\n');
	}
	return 0;
}

Compilation message (stderr)

toll.cpp:8:13: error: array bound is not an integer constant before ']' token
    8 | int dp[N][SQ] , dis[N] , k , n , m , o , a , b;
      |             ^
toll.cpp: In function 'int main()':
toll.cpp:22:4: error: 'dp' was not declared in this scope; did you mean 'd'?
   22 |    dp[i][d] = INF;
      |    ^~
      |    d
toll.cpp:40:145: error: 'dp' was not declared in this scope
   40 |    for(int i = (vala + SQ - 1) * k ; i < (vala + SQ) * k ; i++) for(int j = vala * k ; j < (vala + 1) * k ; j++) dis[i] = min(dis[i] , dis[j] + dp[j][i - j]);
      |                                                                                                                                                 ^~
toll.cpp:43:83: error: 'dp' was not declared in this scope
   43 |   for(int i = vala * k ; i < (vala + 1) * k ; i++) dis[b] = min(dis[b] , dis[i] + dp[i][b - i]);
      |                                                                                   ^~