oj.uz

Submission #882778

# Submission time Handle Problem Language Result Execution time Memory
882778 2023-12-03T17:30:58 Z efedmrlr Palembang Bridges (APIO15_bridge) C++17
22 / 100
 119 ms 14548 KB 
#include <bits/stdc++.h>

using namespace std;

#define n_l '\n'
#define dbg(...) cout << "[" << #__VA_ARGS__ << "]: "; cout << to_string(__VA_ARGS__) << endl
template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)),  __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); } 
#define dbgm(...) cout << "[" << #__VA_ARGS__ << "]: "; dbgm(__VA_ARGS__); cout << endl


#define int long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int (i) = 0; (i) < (n); (i)++)

void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
}


const double EPS = 0.00001;
const int INF = 1e9+500;
const int N = 3e5+5;
const int ALPH = 26;
const int LGN = 25;
const int MOD = 1e9+7;
int n,m,q,K;
int ans = 0;

struct Inter {
    int l, r;
    Inter(int left, int right) {
        l = left;
        r = right;
    }
    Inter() {
        l = 0;
        r = 0;
    }
    const bool operator<(const Inter &oth) {
        return l + r < oth.l + oth.r;
    }
    void print() {
        cout<<"l:"<<l<<" r:"<<r<<"\n";
    }
};
vector<Inter> arr;

struct MedianSet {
    set<array<int,2> > l,r;
    int lsum, rsum;
    MedianSet() {
        l.clear(); r.clear();
        lsum = 0ll;
        rsum = 0ll;
    }
    int size() {
        return l.size() + r.size();
    }
    int median() {
        if(size() == 0ll) return 0;
        return (*r.begin())[0];
    }
    void balance() {
        while((int)l.size() < (int)r.size() - 1) {
        
            l.insert(*r.begin());
            rsum -= (*r.begin())[0];
            lsum += (*r.begin())[0];
            r.erase(r.begin());
        }
        while(l.size() > r.size()) {
            r.insert(*prev(l.end()));
            lsum -= (*prev(l.end()))[0];
            rsum += (*prev(l.end()))[0];
            l.erase(prev(l.end()));
        }
    }
    void add_el(array<int,2> x) {
        if(x[0] < median()) {
        l.insert(x);
        lsum += x[0];
        }
        else {
            r.insert(x);
            rsum += x[0];
        }
        balance();
    }
    void delete_el(array<int,2> x) {
        if(l.find(x) != l.end()) {
            l.erase(x);
            lsum -= x[0];
        }
        else if(r.find(x) != r.end()) {
            r.erase(x);
            rsum -= x[0];
        }
        else assert(0);
        balance();
    }
    
    int find_val() {

        return (median() * l.size() - lsum) + (rsum - median() * r.size());
    }

};

inline void solve() {
    cin>>K>>n;

    for(int i = 0; i<n; i++) {
        int b,d;
        char a,c;
        cin>>a>>b>>c>>d;
        if(a == c) {
            ans += abs(b-d);
        }
        else {
            arr.pb(Inter(min(b,d), max(b,d)));
        }

    }
    n = arr.size();
    if(n == 0) {
        cout<<ans<<"\n";
        return;
    }
    sort(arr.begin(), arr.end());
    MedianSet st1, st2;
    for(int i = 0; i<n; i++) {
        // arr[i].print();
        st2.add_el({arr[i].l, i * 2ll});
        st2.add_el({arr[i].r, i * 2ll + 1ll});
    }
    if(K == 1) {
        cout<<st2.find_val() + ans + n<<"\n";
        return;
    }

    int res = INF;
    for(int i = 0; i<n; i++) {
        int cur = 0;
        cur +=  st1.find_val() + st2.find_val();
        // dbg(st1.find_val()); dbg(st2.find_val());
        // dbg(cur);
        st1.add_el({arr[i].l, i * 2ll});
        st1.add_el({arr[i].r, i * 2ll + 1});
        st2.delete_el({arr[i].l, i * 2ll});
        st2.delete_el({arr[i].r, i * 2ll + 1});
        // dbg(i);
        res = min(res, cur);
    }
    res = min(res, st1.find_val() + st2.find_val());
    cout<<res + ans + n<<"\n";

}
 
signed main() {
    fastio();
    int test = 1;
    //cin>>test;
    while(test--) {
        solve();
    }
    
}

Compilation message

bridge.cpp: In function 'std::string to_string(std::string, int, int)':
bridge.cpp:7:208: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 | template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)),  __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); }
      |                                                                                                                                                                                                             ~~~^~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 592 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 69 ms 14428 KB Output is correct
13 Correct 119 ms 14404 KB Output is correct
14 Correct 96 ms 12992 KB Output is correct
15 Correct 57 ms 8504 KB Output is correct
16 Correct 84 ms 14548 KB Output is correct
17 Correct 70 ms 14280 KB Output is correct
18 Correct 68 ms 14444 KB Output is correct
19 Correct 77 ms 14532 KB Output is correct
20 Correct 72 ms 14404 KB Output is correct
21 Correct 85 ms 14536 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 344 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 1 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -