Submission #42297

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
42297	2018-02-25 15:15:57	RezwanArefin01	Commuter Pass (JOI18_commuter_pass)	C++14	100 / 100	653 ms	21916 KiB

commuter_pass

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, int> ii; 
const int maxn = 1e5 + 10;
vector<int> adj[maxn], cost[maxn];
vector<ll> du, dv, dt, ds, dp1, dp2;
void dijkstra(int s, int n, vector<ll> &d) {
  for(int i = 0; i < n; i++) d[i] = 1e18;
  priority_queue<ii, vector<ii>, greater<ii> > q;
  q.push({d[s] = 0, s});
  while(!q.empty()) {
    ii x = q.top(); q.pop(); 
    int u = x.second; ll c = x.first;
    for(int i = 0; i < adj[u].size(); i++) {
      int v = adj[u][i]; ll w = cost[u][i];
      if(d[v] > c + w) {
        d[v] = c + w;
        q.push({d[v], v});
      }
    }
  }
}
void compute(int s, int n, vector<ll> &dp, vector<ll> &d) {
  dp.resize(n + 1);
  d.resize(n + 1);
 
 
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Compilation message (stderr)

commuter_pass.cpp: In function 'void dijkstra(int, int, std::vector<long long int>&)':
commuter_pass.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < adj[u].size(); i++) {
                    ^
commuter_pass.cpp: In function 'void compute(int, int, std::vector<long long int>&, std::vector<long long int>&)':
commuter_pass.cpp:41:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < adj[u].size(); i++) {
                    ^
commuter_pass.cpp: In function 'int main(int, const char**)':
commuter_pass.cpp:65:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m); 
                        ^
commuter_pass.cpp:66:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &s, &t);
                        ^
commuter_pass.cpp:67:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &u, &v);
                        ^
commuter_pass.cpp:70:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &u, &v, &c);
                                ^

• Subtask 1: 16 / 16
• Subtask 2: 15 / 15
• Subtask 3: 24 / 24
• Subtask 4: 45 / 45