oj.uz

Submission #423257

# Submission time Handle Problem Language Result Execution time Memory
423257 2021-06-10T20:53:01 Z MDario Ancient Books (IOI17_books) C++11
0 / 100
 1 ms 332 KB 
#include "books.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define F first.first
#define S first.second
#define T second
long long minimum_walk(vector<int> p, int s){
    ll n=p.size(), r=0, x=n, y=0, z=-1;
    bool b[n];
    for(int i=0; i<n; i++){
        b[i]=0;
    }
    vector<pair<pair<ll, ll>, vector<ll>>> v;
    vector<ll> v1;
    for(ll i=0; i<n; i++){
        if(!b[i]){
            v1.clear();
            //cout << z << " ";
            if(i>=z){
                if(z!=-1)r+=2*(i-z);
            }
            r+=p[i]-i;
            y=p[i];
            while(y!=i){
                v1.push_back(y);
                z=max(z, y);
                b[y]=1;
                r+=abs(p[y]-y);
                y=p[y];
            }
            v1.push_back(y);
            b[y]=1;
            z=max(z, y);
            v.push_back({{i, z}, v1});
        }
    }
    if(v.empty())return 0;
    unique(v.begin(), v.end());
    sort(v.begin(), v.end());
    if(s>v.back().S)return r+2*(s-v.back().S);
    if(s<=v[0].F) return r+2*(v[0].F-s);
    x=n;
    z=0;
    for(int i=0; i<v.size(); i++){
        if(i+1==v.size()){
            if(s>=v[i].F&&s<=v[i].S&&v[i].S>z){
                //cout << v[i].F << " " << v[i].S << "\n";
                for(int t=0; t<v[i].T.size(); t++)x=min(x, abs(s-v[i].T[t]));
                z=v[i].S;
            }
        }
        else if(v[i+1].F!=v[i].F){
            if(s>=v[i].F&&s<=v[i].S&&v[i].S>z){
                for(int t=0; t<v[i].T.size(); t++)x=min(x, abs(s-v[i].T[t]));
                z=v[i].S;
            }
        }
    }
    if(x==n)return r;
	return r+2*x;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:45:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<long long int, long long int>, std::vector<long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |     for(int i=0; i<v.size(); i++){
      |                  ~^~~~~~~~~
books.cpp:46:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<long long int, long long int>, std::vector<long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         if(i+1==v.size()){
      |            ~~~^~~~~~~~~~
books.cpp:49:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |                 for(int t=0; t<v[i].T.size(); t++)x=min(x, abs(s-v[i].T[t]));
      |                              ~^~~~~~~~~~~~~~
books.cpp:55:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |                 for(int t=0; t<v[i].T.size(); t++)x=min(x, abs(s-v[i].T[t]));
      |                              ~^~~~~~~~~~~~~~

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3590'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -