oj.uz

Submission #522199

# Submission time Handle Problem Language Result Execution time Memory
522199 2022-02-04T05:46:36 Z idas Stations (IOI20_stations) C++17
0 / 100
 974 ms 636 KB 
#include <bits/stdc++.h>
#define FAST_IO ios_base::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr)
#define FOR(i, begin, end) for(int i = (begin); i < (end); i++)
#define TSTS int ttt; cin >> ttt; while(ttt--) solve()
#define all(x) (x).begin(), (x).end()
#define le(vec) vec[vec.size()-1]
#define sz(x) ((int)((x).size()))
#define pb push_back
#define s second
#define f first

using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef map<int, int> mii;
typedef pair<int, int> pii;
typedef pair<long long, long long> pll;
typedef pair<long double, long double> pdd;

const int INF=1e9, MOD=1e9+7, mod=998244353;
const ll LINF=1e18;

void setIO()
{
    FAST_IO;
}

void setIO(string s)
{
    FAST_IO;
    freopen((s+".in").c_str(), "r", stdin);
    freopen((s+".out").c_str(), "w", stdout);
}

const int N=1e3+10;
int cc[N], id;
vi ad[N];

void dfs(int u, int pst)
{
    cc[u]=id; id--;
    for(auto x : ad[u]){
        if(x==pst) continue;
        dfs(x, u);
    }
}

vi label(int n, int k, vi u, vi v)
{
    FOR(i, 0, n) ad[i].clear(), cc[i]=0;
    FOR(i, 0, n-1)
    {
        ad[u[i]].pb(v[i]);
        ad[v[i]].pb(u[i]);
    }
    id=n;
    dfs(0, -1);
    vi ans(n);
    FOR(i, 0, n) ans[i]=cc[i], assert(cc[i]<=k);
    return ans;
}

int find_next_station(int s, int t, vi c)
{
    sort(all(c));
    if(s<t) return *max_element(all(c));
    for(auto x : c){
        if(x>=t) return x;
    }
}

Compilation message

stations.cpp: In function 'void setIO(std::string)':
stations.cpp:33:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     freopen((s+".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
stations.cpp:34:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     freopen((s+".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, vi)':
stations.cpp:72:1: warning: control reaches end of non-void function [-Wreturn-type]
   72 | }
      | ^

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 510 ms 636 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 513 ms 528 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 519 ms 528 KB Wrong query response.
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 974 ms 400 KB Output is correct
2 Correct 612 ms 400 KB Output is correct
3 Incorrect 444 ms 512 KB Wrong query response.
4 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 469 ms 524 KB Wrong query response.
2 Halted 0 ms 0 KB -