제출 #720134

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
720134		ooo	Race (IOI11_race)	C++14	컴파일 에러	0 ms	0 KiB

race

#include <bits/stdc++.h>
#include "race.h"

#define ll long long
const int nu = 3e5+5;
typedef pair<ll, ll> cap;
ll n, k, s[nu], f[nu], ans = 1e9, hh[nu];
bool r[nu];
vector< vector<cap> > g;
multiset<cap> ms;
int dfs(int u, int t)
{
    s[u] = 1;
    for(cap x : g[u])
    {
        int v = x.first;
        if(r[v] || v == t) continue;
        s[u] += dfs(v, u);
    }
    return s[u];
}
int get_centroid(int u, int t, int sum)
{
    for(cap x : g[u])
    {
        int v = x.first;
        if(r[v] || v == t) continue;
        if(s[v]*2 > sum) return get_centroid(v, u, sum);
    }
    return u;
}
void dfs2(int u, int t, int w, int ok)
{
    f[u] = f[t]+w; hh[u] = hh[t]+1;
    if(f[u] > k) return ;
    if(ok == 0)
    {
        cap o = {k-f[u], 0};
        multiset<cap> :: iterator it;
        it = lower_bound(ms.begin(), ms.end(), o);
        if((*it).first == k-f[u])
        ans = min(ans, hh[u]+(*it).second);
    }
    else ms.insert({f[u], hh[u]});
    for(cap x : g[u])
    {
        int v = x.first;
        ll l = x.second;
        if(v == t || r[v]) continue;
        dfs2(v, u, l, ok);
    }
}
void centroid(int u)
{
    int cnt = dfs(u, 0);
    int c = get_centroid(u, 0, cnt);
    r[c] = true;

    ms.insert({0, 0});
    ms.insert({1e15, 0});
    for(cap x : g[c])
    {
        int v = x.first;
        ll l = x.second;
        if(r[v]) continue;
        dfs2(v, 0, l, 0); dfs2(v, 0, l, 1);
    }

    while(!ms.empty()) ms.erase(*ms.begin());
    for(cap x : g[c])
    {
        int v = x.first;
        if(!r[v]) centroid(v);
    }
}
int best_path(int x, int y, int H[][2], int L[])
{
    n = x; k = y;
    g.resize(n+1);
    for(int i = 0; i < n-1; ++i)
    {
        ll u = H[i][0]; ll v = H[i][1]; ll c = L[i];
        u++; v++;
        g[u].push_back({v, c});
        g[v].push_back({u, c});
    }
    centroid(1);
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

race.cpp:6:9: error: 'pair' does not name a type
    6 | typedef pair<ll, ll> cap;
      |         ^~~~
race.cpp:9:1: error: 'vector' does not name a type
    9 | vector< vector<cap> > g;
      | ^~~~~~
race.cpp:10:1: error: 'multiset' does not name a type
   10 | multiset<cap> ms;
      | ^~~~~~~~
race.cpp: In function 'int dfs(int, int)':
race.cpp:14:9: error: 'cap' was not declared in this scope
   14 |     for(cap x : g[u])
      |         ^~~
race.cpp:20:5: error: expected primary-expression before 'return'
   20 |     return s[u];
      |     ^~~~~~
race.cpp:19:6: error: expected ';' before 'return'
   19 |     }
      |      ^
      |      ;
   20 |     return s[u];
      |     ~~~~~~
race.cpp:20:5: error: expected primary-expression before 'return'
   20 |     return s[u];
      |     ^~~~~~
race.cpp:19:6: error: expected ')' before 'return'
   19 |     }
      |      ^
      |      )
   20 |     return s[u];
      |     ~~~~~~
race.cpp:14:8: note: to match this '('
   14 |     for(cap x : g[u])
      |        ^
race.cpp: In function 'int get_centroid(int, int, int)':
race.cpp:24:9: error: 'cap' was not declared in this scope
   24 |     for(cap x : g[u])
      |         ^~~
race.cpp:30:5: error: expected primary-expression before 'return'
   30 |     return u;
      |     ^~~~~~
race.cpp:29:6: error: expected ';' before 'return'
   29 |     }
      |      ^
      |      ;
   30 |     return u;
      |     ~~~~~~
race.cpp:30:5: error: expected primary-expression before 'return'
   30 |     return u;
      |     ^~~~~~
race.cpp:29:6: error: expected ')' before 'return'
   29 |     }
      |      ^
      |      )
   30 |     return u;
      |     ~~~~~~
race.cpp:24:8: note: to match this '('
   24 |     for(cap x : g[u])
      |        ^
race.cpp: In function 'void dfs2(int, int, int, int)':
race.cpp:38:9: error: 'cap' was not declared in this scope
   38 |         cap o = {k-f[u], 0};
      |         ^~~
race.cpp:39:9: error: 'multiset' was not declared in this scope; did you mean 'std::multiset'?
   39 |         multiset<cap> :: iterator it;
      |         ^~~~~~~~
      |         std::multiset
In file included from /usr/include/c++/10/set:61,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:87,
                 from race.cpp:1:
/usr/include/c++/10/bits/stl_set.h:70:11: note: 'std::multiset' declared here
   70 |     class multiset;
      |           ^~~~~~~~
race.cpp:39:26: error: '::iterator' has not been declared; did you mean 'std::iterator'?
   39 |         multiset<cap> :: iterator it;
      |                          ^~~~~~~~
      |                          std::iterator
In file included from /usr/include/c++/10/bits/stl_algobase.h:65,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from race.cpp:1:
/usr/include/c++/10/bits/stl_iterator_base_types.h:127:12: note: 'std::iterator' declared here
  127 |     struct iterator
      |            ^~~~~~~~
race.cpp:40:9: error: 'it' was not declared in this scope; did you mean 't'?
   40 |         it = lower_bound(ms.begin(), ms.end(), o);
      |         ^~
      |         t
race.cpp:40:26: error: 'ms' was not declared in this scope; did you mean 's'?
   40 |         it = lower_bound(ms.begin(), ms.end(), o);
      |                          ^~
      |                          s
race.cpp:40:48: error: 'o' was not declared in this scope
   40 |         it = lower_bound(ms.begin(), ms.end(), o);
      |                                                ^
race.cpp:40:14: error: 'lower_bound' was not declared in this scope; did you mean 'std::lower_bound'?
   40 |         it = lower_bound(ms.begin(), ms.end(), o);
      |              ^~~~~~~~~~~
      |              std::lower_bound
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from race.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:2031:5: note: 'std::lower_bound' declared here
 2031 |     lower_bound(_ForwardIterator __first, _ForwardIterator __last,
      |     ^~~~~~~~~~~
race.cpp:42:15: error: 'min' was not declared in this scope; did you mean 'std::min'?
   42 |         ans = min(ans, hh[u]+(*it).second);
      |               ^~~
      |               std::min
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from race.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3474:5: note: 'std::min' declared here
 3474 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
race.cpp:44:10: error: 'ms' was not declared in this scope; did you mean 's'?
   44 |     else ms.insert({f[u], hh[u]});
      |          ^~
      |          s
race.cpp:45:9: error: 'cap' was not declared in this scope
   45 |     for(cap x : g[u])
      |         ^~~
race.cpp:52:1: error: expected primary-expression before '}' token
   52 | }
      | ^
race.cpp:51:6: error: expected ';' before '}' token
   51 |     }
      |      ^
      |      ;
   52 | }
      | ~     
race.cpp:52:1: error: expected primary-expression before '}' token
   52 | }
      | ^
race.cpp:51:6: error: expected ')' before '}' token
   51 |     }
      |      ^
      |      )
   52 | }
      | ~     
race.cpp:45:8: note: to match this '('
   45 |     for(cap x : g[u])
      |        ^
race.cpp:52:1: error: expected primary-expression before '}' token
   52 | }
      | ^
race.cpp: In function 'void centroid(int)':
race.cpp:59:5: error: 'ms' was not declared in this scope; did you mean 's'?
   59 |     ms.insert({0, 0});
      |     ^~
      |     s
race.cpp:61:9: error: 'cap' was not declared in this scope
   61 |     for(cap x : g[c])
      |         ^~~
race.cpp:69:5: error: expected primary-expression before 'while'
   69 |     while(!ms.empty()) ms.erase(*ms.begin());
      |     ^~~~~
race.cpp:67:6: error: expected ';' before 'while'
   67 |     }
      |      ^
      |      ;
   68 | 
   69 |     while(!ms.empty()) ms.erase(*ms.begin());
      |     ~~~~~
race.cpp:69:5: error: expected primary-expression before 'while'
   69 |     while(!ms.empty()) ms.erase(*ms.begin());
      |     ^~~~~
race.cpp:67:6: error: expected ')' before 'while'
   67 |     }
      |      ^
      |      )
   68 | 
   69 |     while(!ms.empty()) ms.erase(*ms.begin());
      |     ~~~~~
race.cpp:61:8: note: to match this '('
   61 |     for(cap x : g[c])
      |        ^
race.cpp:70:9: error: 'cap' was not declared in this scope
   70 |     for(cap x : g[c])
      |         ^~~
race.cpp:75:1: error: expected primary-expression before '}' token
   75 | }
      | ^
race.cpp:74:6: error: expected ';' before '}' token
   74 |     }
      |      ^
      |      ;
   75 | }
      | ~     
race.cpp:75:1: error: expected primary-expression before '}' token
   75 | }
      | ^
race.cpp:74:6: error: expected ')' before '}' token
   74 |     }
      |      ^
      |      )
   75 | }
      | ~     
race.cpp:70:8: note: to match this '('
   70 |     for(cap x : g[c])
      |        ^
race.cpp:75:1: error: expected primary-expression before '}' token
   75 | }
      | ^
race.cpp: In function 'int best_path(int, int, int (*)[2], int*)':
race.cpp:79:5: error: 'g' was not declared in this scope
   79 |     g.resize(n+1);
      |     ^