oj.uz

Submission #894533

# Submission time Handle Problem Language Result Execution time Memory
894533 2023-12-28T11:45:05 Z salmon Palembang Bridges (APIO15_bridge) C++14
22 / 100
 208 ms 23844 KB 
#include <bits/stdc++.h>
using namespace std;

int N;
int K;
char c,c1;
vector<pair<long long int,pair<int,int>>> v;
long long int h,h1;
long long int sum = 0;
long long int ans = 0;
long long int big = 1e18;
long long int lst[100100];

int main(){

    scanf(" %d",&K);
    scanf(" %d",&N);

    set<pair<int,int>> s;
    map<int,int> mep;

    for(int i = 0; i < N; i++){
        scanf(" %c",&c);
        scanf(" %lld",&h);
        scanf(" %c",&c1);
        scanf(" %lld",&h1);

        if(c == c1){
            ans += abs(h - h1);
        }
        else{
            v.push_back(make_pair(h + h1, make_pair(h,h1)));
        }
    }

    sort(v.begin(),v.end());

    auto it = s.begin();

    lst[0] = 0;

    for(int i = 0; i < v.size(); i++){
        if(i == 0){
            sum = abs(v[i].second.second - v[i].second.first);
            s.insert(make_pair(v[i].second.second, mep[v[i].second.second]));
            mep[v[i].second.second]++;
            s.insert(make_pair(v[i].second.first, mep[v[i].second.first]));
            mep[v[i].second.first]++;
            it = s.begin();
        }
        else{
            int flag = 0;

            pair<int,int> ii = make_pair(v[i].second.first, mep[v[i].second.first] );
            mep[v[i].second.first]++;
            pair<int,int> ii1 = make_pair(v[i].second.second, mep[v[i].second.second]);
            mep[v[i].second.second]++;

            flag += (*it) < ii;
            flag += (*it) < ii1;

            int lum = 0;

            if(flag == 0){
                s.insert(ii);
                s.insert(ii1);

                lum += it -> first;
                advance(it,-1);
                lum -= it -> first;

                sum += abs(it -> first - ii.first);
                sum += abs(it -> first - ii1.first);
                sum += abs(lum)* 2;
            }
            if(flag == 1){
                s.insert(ii);
                s.insert(ii1);

                sum += abs(it -> first - ii.first);
                sum += abs(it -> first - ii1.first);
            }
            if(flag == 2){
                s.insert(ii);
                s.insert(ii1);

                advance(it,1);

                sum += abs(it -> first - ii.first);
                sum += abs(it -> first - ii1.first);
            }
        }

        lst[i + 1] = sum;
    }

    s.clear();
    mep.clear();
    big = sum + ans;
    /*
    for(int i = v.size() - 1; i >= 0; i--){
        if(i == v.size() - 1){
            sum = abs(v[i].second.second - v[i].second.first);
            s.insert(make_pair(v[i].second.second, mep[v[i].second.second]));
            mep[v[i].second.second]++;
            s.insert(make_pair(v[i].second.first, mep[v[i].second.first]));
            mep[v[i].second.first]++;
            it = s.begin();
        }
        else{
            int flag = 0;

            pair<int,int> ii = make_pair(v[i].second.first, mep[v[i].second.first] );
            mep[v[i].second.first]++;
            pair<int,int> ii1 = make_pair(v[i].second.second, mep[v[i].second.second]);
            mep[v[i].second.second]++;

            flag += (*it) < ii;
            flag += (*it) < ii1;

            int lum = 0;

            if(flag == 0){
                s.insert(ii);
                s.insert(ii1);

                lum += it -> first;
                advance(it,-1);
                lum -= it -> first;

                sum += abs(it -> first - ii.first);
                sum += abs(it -> first - ii1.first);
                sum += abs(lum) * 2;
            }
            if(flag == 1){
                s.insert(ii);
                s.insert(ii1);

                sum += abs(it -> first - ii.first);
                sum += abs(it -> first - ii1.first);
            }
            if(flag == 2){
                s.insert(ii);
                s.insert(ii1);

                advance(it,1);

                sum += abs(it -> first - ii.first);
                sum += abs(it -> first - ii1.first);
            }
        }

        big = min(big, lst[i] + sum);
    }*/

    if(K == 2) printf("%lld",big + v.size() + ans);
    else printf("%lld", sum + ans + v.size());

}
/*
2 5
B 0 A 4
B 1 B 3
A 5 B 7
B 2 A 6
B 1 A 7
*/

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:42:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i = 0; i < v.size(); i++){
      |                    ~~^~~~~~~~~~
bridge.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     scanf(" %d",&K);
      |     ~~~~~^~~~~~~~~~
bridge.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |     scanf(" %d",&N);
      |     ~~~~~^~~~~~~~~~
bridge.cpp:23:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |         scanf(" %c",&c);
      |         ~~~~~^~~~~~~~~~
bridge.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf(" %lld",&h);
      |         ~~~~~^~~~~~~~~~~~
bridge.cpp:25:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |         scanf(" %c",&c1);
      |         ~~~~~^~~~~~~~~~~
bridge.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |         scanf(" %lld",&h1);
      |         ~~~~~^~~~~~~~~~~~~

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 344 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 672 KB Output is correct
9 Correct 1 ms 500 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 604 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 61 ms 12780 KB Output is correct
13 Correct 208 ms 23844 KB Output is correct
14 Correct 117 ms 12480 KB Output is correct
15 Correct 95 ms 14120 KB Output is correct
16 Correct 62 ms 13760 KB Output is correct
17 Correct 108 ms 23740 KB Output is correct
18 Correct 135 ms 23288 KB Output is correct
19 Correct 101 ms 23428 KB Output is correct
20 Correct 63 ms 13996 KB Output is correct
21 Correct 121 ms 23528 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -