Submission #1320384

#	Time	Username	Problem	Language	Result	Execution time	Memory
1320384		Thanhs	Race (IOI11_race)	C++20	Compilation error	0 ms	0 KiB

race

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

#define name "TENBAI"
#define fi first
#define se second
#define int long long
#define endl '\n'
#define setmin(x, y) x = min((x), (y))
#define setmax(x, y) x = max((x), (y))
#define sqr(x) ((x) * (x))
#define all(x) x.begin(), x.end()

const int inf = 1e9;

vector<pair<int, int>> g[NM];
int n, k, ans = inf, done[NM];

int dfs_sz(int u, int p)
{
    sz[u] = 1;
    for (auto v : g[u])
        if (v.fi != p && !done[v.fi])
            sz[u] += dfs_sz(v.fi, u);
    return sz[u];
}

int findcen(int u, int p, int SZ)
{
    for (auto v : g[u])
        if (v.fi != p && !done[v.fi] && 2 * sz[v.fi] >= SZ)
            return findcen(v.fi, u, SZ);
    return u;
}

void get(int u, int p, int w, int c)
{
    if (mp.count(k - w))
        setmin(ans, c + mp[k - w] - 1);
    for (auto v : g[u])
        if (v.fi != p && !done[v.fi])
            get(v.fi, u, w + v.se, c + 1);
}

void add(int u, int p, int w, int c)
{
    setmin(mp[w], c);
    for (auto v : g[u])
        if (v.fi != p && !done[v.fi])
            get(v.fi, u, w + v.se, c + 1);
}

void cen(int u)
{
    int c = findcen(u, 0, dfs_sz(u));
    mp.clear();
    mp[0] = 1;
    for (auto v : g[u])
        if (!done[v.fi])
        {
            get(v.fi, u, v.se, 2);
            add(v.fi, u, v.se, 2);
        }
    done[u] = 1;
    for (auto v : g[u])
        if (!done[v.fi])
            cen(v.fi);
}

int best_path(int N, int K, int H[][2], int L[])
{
    n = N;
    for (int i = 0; i < n - 1; i++)
    {
        g[H[i][0]].emplace_back(H[i][1], L[i]);
        g[H[i][1]].emplace_back(H[i][0], L[i]);
    }
    cen(1);
  return ans == inf ? -1 : ans;
}

Compilation message (stderr)

race.cpp:17:26: error: 'NM' was not declared in this scope
   17 | vector<pair<int, int>> g[NM];
      |                          ^~
race.cpp:18:27: error: 'NM' was not declared in this scope
   18 | int n, k, ans = inf, done[NM];
      |                           ^~
race.cpp: In function 'long long int dfs_sz(long long int, long long int)':
race.cpp:22:5: error: 'sz' was not declared in this scope; did you mean 'se'?
   22 |     sz[u] = 1;
      |     ^~
      |     se
race.cpp:23:19: error: 'g' was not declared in this scope
   23 |     for (auto v : g[u])
      |                   ^
race.cpp:24:27: error: 'done' was not declared in this scope
   24 |         if (v.fi != p && !done[v.fi])
      |                           ^~~~
race.cpp: In function 'long long int findcen(long long int, long long int, long long int)':
race.cpp:31:19: error: 'g' was not declared in this scope
   31 |     for (auto v : g[u])
      |                   ^
race.cpp:32:27: error: 'done' was not declared in this scope
   32 |         if (v.fi != p && !done[v.fi] && 2 * sz[v.fi] >= SZ)
      |                           ^~~~
race.cpp:32:45: error: 'sz' was not declared in this scope; did you mean 'SZ'?
   32 |         if (v.fi != p && !done[v.fi] && 2 * sz[v.fi] >= SZ)
      |                                             ^~
      |                                             SZ
race.cpp: In function 'void get(long long int, long long int, long long int, long long int)':
race.cpp:39:9: error: 'mp' was not declared in this scope; did you mean 'p'?
   39 |     if (mp.count(k - w))
      |         ^~
      |         p
race.cpp:41:19: error: 'g' was not declared in this scope
   41 |     for (auto v : g[u])
      |                   ^
race.cpp:42:27: error: 'done' was not declared in this scope
   42 |         if (v.fi != p && !done[v.fi])
      |                           ^~~~
race.cpp: In function 'void add(long long int, long long int, long long int, long long int)':
race.cpp:48:12: error: 'mp' was not declared in this scope; did you mean 'p'?
   48 |     setmin(mp[w], c);
      |            ^~
race.cpp:10:22: note: in definition of macro 'setmin'
   10 | #define setmin(x, y) x = min((x), (y))
      |                      ^
race.cpp:49:19: error: 'g' was not declared in this scope
   49 |     for (auto v : g[u])
      |                   ^
race.cpp:50:27: error: 'done' was not declared in this scope
   50 |         if (v.fi != p && !done[v.fi])
      |                           ^~~~
race.cpp: In function 'void cen(long long int)':
race.cpp:56:33: error: too few arguments to function 'long long int dfs_sz(long long int, long long int)'
   56 |     int c = findcen(u, 0, dfs_sz(u));
      |                           ~~~~~~^~~
race.cpp:20:5: note: declared here
   20 | int dfs_sz(int u, int p)
      |     ^~~~~~
race.cpp:57:5: error: 'mp' was not declared in this scope
   57 |     mp.clear();
      |     ^~
race.cpp:59:19: error: 'g' was not declared in this scope
   59 |     for (auto v : g[u])
      |                   ^
race.cpp:60:14: error: 'done' was not declared in this scope
   60 |         if (!done[v.fi])
      |              ^~~~
race.cpp:65:5: error: 'done' was not declared in this scope
   65 |     done[u] = 1;
      |     ^~~~
race.cpp:66:19: error: 'g' was not declared in this scope
   66 |     for (auto v : g[u])
      |                   ^
race.cpp: In function 'long long int best_path(long long int, long long int, long long int (*)[2], long long int*)':
race.cpp:76:9: error: 'g' was not declared in this scope
   76 |         g[H[i][0]].emplace_back(H[i][1], L[i]);
      |         ^