제출 #1211783

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1211783		Madhav_1608	Sirni (COCI17_sirni)	C++20	컴파일 에러	0 ms	0 KiB

sirni

#include <iostream>
#include <stack>
#include <queue>
#include <string>
#include <algorithm>
#include <vector>
#include <map>
#include <set>
#include <climits>
#include <cmath>
#include <unordered_map>
#include <unordered_set>
#include <numeric>
#include <iomanip>
#include <cstring>
#include <stdio.h>
#include <assert.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<string> vs;
typedef vector<long long> vll;
typedef pair<ll,ll> pll;
#define double long double
#define F first
#define S second
const double eps = 1e-12; 
#define FOR(i,a,b) for(long long i=a;i<b;i++)
#define all(v) v.begin(),v.end()
template <typename I>
void print(vector<I> &v){
    FOR(i,0,v.size()){cout << v[i] << " ";}
    cout << "\n";
}
ll gcd(ll a,ll b){
    if(a==0){return b;}
    else if(b==0){return a;}
    else if(a<b){return gcd(b%a,a);}
    else{return gcd(a%b,b);}
}
ll lcm(ll a,ll b){
    return (a/gcd(a,b))*b;
}
void setIO(string name = "") {
    freopen((name + ".in").c_str(), "r", stdin); // see /general/input-output
    freopen((name + ".out").c_str(), "w", stdout);
}
void init_code(){
    #ifndef ONLINE_JUDGE
    freopen("input.txt","r",stdin);
    freopen("output.txt","w",stdout);
    #endif
}
class DSU {
  private:
    vector<int> parents;
    vector<int> sizes;

  public:
    DSU(int size) : parents(size), sizes(size, 1) {
        for (int i = 0; i < size; i++) { parents[i] = i; }
    }

    /** @return the "representative" node in x's component */
    int find(int x) { return parents[x] == x ? x : (parents[x] = find(parents[x])); }

    /** @return whether the merge changed connectivity */
    bool unite(int x, int y) {
        int x_root = find(x);
        int y_root = find(y);
        if (x_root == y_root) { return false; }

        if (sizes[x_root] < sizes[y_root]) { swap(x_root, y_root); }
        sizes[x_root] += sizes[y_root];
        parents[y_root] = x_root;
        return true;
    }

    /** @return whether x and y are in the same connected component */
    bool connected(int x, int y) { return find(x) == find(y); }
};
void solve(){
    // store very big numbers may mean log2
    ll n;
    cin >> n;
    vll a(n);
    FOR(i,0,n) cin >> a[i];
    sort(all(a));
    vll b;
    b.push_back(a[0]);
    FOR(i,1,n){
        if(a[i]==a[i-1]) continue;
        b.push_back(a[i]);
    }
    n = b.size();
    vector<vll> edges;
    FOR(i,0,n){
        for(ll j=2ll*b[i];j<=b.back();j+=b[i]){
            auto it = (lower_bound(all(b),j)-b.begin());
            edges.push_back({b[it]-j,i,it});
        }
        auto it = upper_bound(all(b),b[i]);
        if(it==b.end()) continue;
        ll it1 = (it-b.begin());
        edges.push_back({b[it1]-j,i,it1});        
    }
    DSU dsu(n);
    sort(all(edges));
    ll ans = 0;
    for(vll &v:edges){
        if(dsu.connected(v[1],v[2])) continue;
        ans += v[0];
        dsu.unite(v[1],v[2]);
    }
    cout << ans << "\n";
}

signed main(){
    //setIO
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    // init_code();
    ll t=1;
    // cin >> t;
    while(t--){
        solve();
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

sirni.cpp: In function 'void solve()':
sirni.cpp:105:33: error: 'j' was not declared in this scope
  105 |         edges.push_back({b[it1]-j,i,it1});
      |                                 ^
sirni.cpp:105:24: error: no matching function for call to 'std::vector<std::vector<long long int> >::push_back(<brace-enclosed initializer list>)'
  105 |         edges.push_back({b[it1]-j,i,it1});
      |         ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/vector:67,
                 from /usr/include/c++/11/queue:61,
                 from sirni.cpp:3:
/usr/include/c++/11/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::vector<long long int>; _Alloc = std::allocator<std::vector<long long int> >; std::vector<_Tp, _Alloc>::value_type = std::vector<long long int>]'
 1187 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1187:35: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::vector<long long int>&'}
 1187 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/11/bits/stl_vector.h:1203:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = std::vector<long long int>; _Alloc = std::allocator<std::vector<long long int> >; std::vector<_Tp, _Alloc>::value_type = std::vector<long long int>]'
 1203 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1203:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<std::vector<long long int> >::value_type&&' {aka 'std::vector<long long int>&&'}
 1203 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~
sirni.cpp: In function 'void setIO(std::string)':
sirni.cpp:45:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |     freopen((name + ".in").c_str(), "r", stdin); // see /general/input-output
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sirni.cpp:46:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |     freopen((name + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sirni.cpp: In function 'void init_code()':
sirni.cpp:50:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |     freopen("input.txt","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
sirni.cpp:51:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |     freopen("output.txt","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~