oj.uz

Submission #887828

# Submission time Handle Problem Language Result Execution time Memory
887828 2023-12-15T09:32:19 Z Kutan Palembang Bridges (APIO15_bridge) C++14
22 / 100
 58 ms 10704 KB 
// Cao Quang Hung
#include <cassert>
#include <cctype>
#include <cerrno>
#include <cfloat>
#include <ciso646>
#include <climits>
#include <clocale>
#include <cmath>
#include <csetjmp>
#include <csignal>
#include <cstdarg>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <ccomplex>
#include <cfenv>
#include <cinttypes>
#include <cstdbool>
#include <cstdint>
#include <ctgmath>
#include <cwchar>
#include <cwctype>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <typeinfo>
#include <utility>
#include <valarray>
#include <vector>
#include <array>
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <forward_list>
#include <future>
#include <initializer_list>
#include <mutex>
#include <random>
#include <ratio>
#include <regex>
#include <scoped_allocator>
#include <system_error>
#include <thread>
#include <tuple>
#include <typeindex>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
 
using namespace std;
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define pii pair<int,int>
#define pll pair<long long , long long>
#define vi vector<int>
#define vpii vector<pii>
#define SZ(x) ((int)(x.size()))
#define fi first
#define se second
#define IN(x,y) ((y).find((x))!=(y).end())
#define ALL(t) t.begin(),t.end()
#define FOREACH(i,t) for (typeof(t.begin()) i=t.begin(); i!=t.end(); i++)
#define REP(i,a,b) for(int (i)=(a);(i)<=(b);++i)
#define REPD(i,a,b) for(int (i)=(a); (i)>=(b);--i)
#define FOR(i, n) for (int (i) = 0; (i) < (n); ++(i))
#define dem(x) __builtin_popcount(x)
#define Mask(x) (1LL << (x))
#define BIT(x, i) ((x) >> (i) & 1)
#define ln '\n'
#define io_faster ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
///mt19937 rnd(time(0));
 
const int INF = 1e9 , mod = 1e9 + 7;
 
template <class T1, class T2>
inline T1 mul(T1& x, const T2 &k){ return x = (1LL * x * k) % mod; }
 
template <class T1 , class T2>
inline T1 pw(T1 x, T2 k){T1 res = 1; for (; k ; k >>= 1){ if (k & 1) mul(res, x); mul(x, x); } return res;}
 
template <class T>
inline bool minimize(T &x, const T &y){ if (x > y){x = y; return 1;} return 0; }
 
template <class T>
inline bool maximize(T &x, const T &y){ if (x < y){x = y; return 1;} return 0; }
 
template <class T>
inline void add(T &x , const T &y){ if ((x += y) >= mod) x -= mod; }
 
template <class T>
inline T product (const T &x , const T &y) { return 1LL * x * y % mod; }
 
#define PROB "a"
void file(){
    if(fopen(PROB".inp", "r")){
        freopen(PROB".inp","r",stdin);
        freopen(PROB".out","w",stdout);
    }
}
void sinh_(){
//    srand(time(0));
//    freopen(PROB".inp" , "w" , stdout);
//    int n;
}
 
typedef long long ll;
typedef double db;
const int N = 2e5 + 5;
int k, n;
ll Ans = 0;
pii segment[N];
int numseg = 0, numpoint;
vector<int> compress;
 
void readip(){
    cin >> k >> n;
    REP(i, 1, n) {
        char a, b; int l, r;
        cin >> a >> l >> b >> r;
        Ans += abs(r - l);
        if (a == b) continue;
        ++Ans;
        if (l > r) swap(l, r);
        segment[++numseg] = {l, r};
        compress.eb(l);
        compress.eb(r);
    }
    sort(ALL(compress));
    compress.erase(unique(ALL(compress)), compress.end());
    numpoint = compress.size();

    if (numpoint == 0) {
        cout << Ans << ln;
        exit(false);
    }

    sort(segment + 1, segment + numseg + 1);
    REP(i, 1, numseg) {
        // cout << segment[i].fi << ' ' << segment[i].second << ln;
        segment[i].first = lower_bound(ALL(compress), segment[i].first) - compress.begin() + 1;
        segment[i].second = lower_bound(ALL(compress), segment[i].second) - compress.begin() + 1;
    }

}
 
namespace sub1 {
    bool check() {
        return k == 1;
    }
 
    vector<pair<ll, int>> pref, suf;
    void solve() {
        pref.assign(numpoint + 2, {0, 0});
        suf.assign(numpoint + 2, {0, 0});
        REP(i, 1, numseg) {
            pref[segment[i].second].first += compress[segment[i].second - 1];
            pref[segment[i].second].second++;
 
            suf[segment[i].first].first += compress[segment[i].first - 1];
            suf[segment[i].first].second++;
        }
 
        REP(i, 1, numpoint)  {
            pref[i].first += pref[i - 1].first;
            pref[i].second += pref[i - 1].second;
        }
 
        REPD(i, numpoint - 1, 1) {
            suf[i].first += suf[i + 1].first;
            suf[i].second += suf[i + 1].second;
        }
 
 
        ll res = 1e18;
        REP(i, 1, numpoint) {
            int x = compress[i - 1];
            ll tmp = 1LL * x * pref[i].second - pref[i].first
                    + suf[i].first - 1LL * x * suf[i].second;
            tmp *= 2;
            minimize(res, tmp);
        }
        cout << Ans + res << ln;
    }
};
 
void solve(){       
    if (sub1::check()) {
        sub1::solve();
        return;
    }
 
    
 
}
 
int main(){
    sinh_();
    io_faster
    file();
    int t = 1;
//    cin >> t;
    while (t--){
        readip();
        solve();
    }
}

Compilation message

bridge.cpp: In function 'void readip()':
bridge.cpp:92:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   92 | #define REP(i,a,b) for(int (i)=(a);(i)<=(b);++i)
      |                            ^
bridge.cpp:146:5: note: in expansion of macro 'REP'
  146 |     REP(i, 1, n) {
      |     ^~~
bridge.cpp:92:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   92 | #define REP(i,a,b) for(int (i)=(a);(i)<=(b);++i)
      |                            ^
bridge.cpp:167:5: note: in expansion of macro 'REP'
  167 |     REP(i, 1, numseg) {
      |     ^~~
bridge.cpp: In function 'void sub1::solve()':
bridge.cpp:92:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   92 | #define REP(i,a,b) for(int (i)=(a);(i)<=(b);++i)
      |                            ^
bridge.cpp:184:9: note: in expansion of macro 'REP'
  184 |         REP(i, 1, numseg) {
      |         ^~~
bridge.cpp:92:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   92 | #define REP(i,a,b) for(int (i)=(a);(i)<=(b);++i)
      |                            ^
bridge.cpp:192:9: note: in expansion of macro 'REP'
  192 |         REP(i, 1, numpoint)  {
      |         ^~~
bridge.cpp:93:29: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   93 | #define REPD(i,a,b) for(int (i)=(a); (i)>=(b);--i)
      |                             ^
bridge.cpp:197:9: note: in expansion of macro 'REPD'
  197 |         REPD(i, numpoint - 1, 1) {
      |         ^~~~
bridge.cpp:92:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   92 | #define REP(i,a,b) for(int (i)=(a);(i)<=(b);++i)
      |                            ^
bridge.cpp:204:9: note: in expansion of macro 'REP'
  204 |         REP(i, 1, numpoint) {
      |         ^~~
bridge.cpp: In function 'void file()':
bridge.cpp:125:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  125 |         freopen(PROB".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
bridge.cpp:126:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  126 |         freopen(PROB".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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 344 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 472 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# 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 504 KB Output is correct
7 Correct 1 ms 344 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 472 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 18 ms 2924 KB Output is correct
13 Correct 58 ms 10636 KB Output is correct
14 Correct 39 ms 3220 KB Output is correct
15 Correct 33 ms 6356 KB Output is correct
16 Correct 21 ms 3708 KB Output is correct
17 Correct 37 ms 10704 KB Output is correct
18 Correct 43 ms 10360 KB Output is correct
19 Correct 50 ms 10440 KB Output is correct
20 Correct 24 ms 3792 KB Output is correct
21 Correct 49 ms 10440 KB Output is correct

Subtask #3
0 / 9.0

# 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 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 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 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# 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 Incorrect 0 ms 460 KB Output isn't correct
4 Halted 0 ms 0 KB -