제출 #945527

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
945527		yeediot	Olympiads (BOI19_olympiads)	C++14	100 / 100	187 ms	31916 KiB

olympiads

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
#define ykh mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
#define __lg(x) 63-__builtin_clzll(x)
#define pow2(x) (1LL<<x)
void __print(int x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
struct line{
    int a,b;
    int operator()(const int x)const{
        return a*x+b;
    }
};
bool check(line l1,line l2,line l3){
    return (l3.b-l2.b)*(l1.a-l2.a)<=(l2.b-l1.b)*(l2.a-l3.a);
}
const int mxn=505;
int v[mxn][7];
int conv[7][mxn];
vector<int>ord[7];
int _,n,k;
bool cmp(int a,int b){
    return v[a][_]>v[b][_];
}
int get_val(set<int>st){
    vector<int>mx(k,-8e18);
    for(auto i:st){
        for(int j=0;j<k;j++){
            mx[j]=max(mx[j],v[i][j]);
        }
    }
    int res=0;
    for(int i=0;i<k;i++){
        res+=mx[i];
    }
    return res;
}
vector<int>get_id(set<int>st){
    vector<int>res;
    for(auto i:st)res.pb(i);
    return res;
}
signed main(){
    setio();
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int c;
    cin>>n>>k>>c;
    for(int i=0;i<n;i++){
        for(int j=0;j<k;j++){
            ord[j].pb(i);
            cin>>v[i][j];
        }
    }
    for(int i=0;i<k;i++){
        _=i;
        sort(all(ord[i]),cmp);
        for(int j=0;j<n;j++){
            conv[i][ord[i][j]]=j;
        }
    }
    set<int>st;
    for(int i=0;i<k;i++){
        st.insert(ord[i][0]);
    }
    for(int i=0;i<n;i++){
        if(sz(st)==k)break;
        st.insert(i);
    }
    map<set<int>,bool>mp;
    priority_queue<tuple<int,vector<int>>>pq;
    pq.push({get_val(st),get_id(st)});
    c--;
    mp[st]=1;
    while(c--){
        auto [sum,num]=pq.top();
        pq.pop();
        for(int i=0;i<k;i++){
            set<int>c;
            for(int j=0;j<k;j++){
                if(j==i)continue;
                c.insert(num[j]);
            }
            for(int j=0;j<k;j++){
                //if(j==i)continue;
                int pos=conv[j][num[i]]+1;
                if(pos==n)continue;
                c.insert(ord[j][pos]);
                if(sz(c)==k and !mp[c]){
                    pq.push({get_val(c),get_id(c)});
                    mp[c]=1;
                }
                if(sz(c)==k)c.erase(ord[j][pos]);
            }
        }
    }
    cout<<get<0>(pq.top())<<'\n';
}
 /*
 input:
 
 */















 

컴파일 시 표준 에러 (stderr) 메시지

olympiads.cpp: In function 'int main()':
olympiads.cpp:113:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  113 |         auto [sum,num]=pq.top();
      |              ^
olympiads.cpp: In function 'void setIO(std::string)':
olympiads.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
olympiads.cpp:43:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 13 / 13
• Subtask 2: 31 / 31
• Subtask 3: 24 / 24
• Subtask 4: 32 / 32