Submission #706776

#	Time	Username	Problem	Language	Result	Execution time	Memory
706776		aedmhsn	Tales of seafaring (POI13_mor)	C++17	100 / 100	1815 ms	39692 KiB

mor

#include <bits/stdc++.h>
using namespace std;
 
 
#define A first
#define B second
#define MP make_pair
#define ms(a, x) memset(a, x, sizeof(a)) 
 
 
#define boost() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
 
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<long long, long long> pll;
typedef pair<long double, long double> pld;
const int INF = 0x3f3f3f3f;
const double PI = acos(-1);

const int mxN=5e3+5;

vector <vector<int>> adj(mxN);

int dp[mxN][2];

void bfs(int node){
    queue <int> q;
    q.push(node);
    dp[node][0]=0;
    while(!q.empty()){
        int u = q.front();
        q.pop();
        for(auto x:adj[u]){
            if(dp[u][0]+1 < dp[x][1]){
                dp[x][1] = dp[u][0]+1;
                q.push(x);
            }
        }
        for(auto x:adj[u]){
            if(dp[u][1]+1 < dp[x][0]){
                dp[x][0] = dp[u][1]+1;
                q.push(x);
            }
        }
    }
}

int main(){
    int n, m, k;
    cin >> n >> m >> k;
    for(int i=0; i<m; i++){
        int x, y;
        cin >> x >> y;
        adj[x].push_back(y);
        adj[y].push_back(x);
    }
    vector <pair<pii, pii>> v;
    for(int i=0; i<k; i++){
        int x, y, d;
        cin >> x >> y >> d;
        v.push_back({{x, y}, {d, i}});
    }
    sort(v.begin(), v.end());
    vector <int> ans(k);
    int cur=-1;
    for(int i=0; i<v.size(); i++){
        if(v[i].A.A != cur){
            ms(dp, INF);
            cur=v[i].A.A;
            bfs(cur);
        }
        ans[v[i].B.B] = (dp[v[i].A.B][(v[i].B.A % 2)] <= v[i].B.A && adj[v[i].A.A].size() != 0 ? 1:0);
    }
    for(int i=0; i<k; i++)
        cout << (ans[i] == 1 ? "TAK":"NIE") << '\n';
}

Compilation message (stderr)

mor.cpp: In function 'int main()':
mor.cpp:67:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |     for(int i=0; i<v.size(); i++){
      |                  ~^~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10