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Submission #354719

# Submission time Handle Problem Language Result Execution time Memory
354719 2021-01-22T05:07:41 Z kylych03 Roller Coaster Railroad (IOI16_railroad) C++14
0 / 100
 526 ms 32364 KB 
#include "railroad.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
#define ll long long
using namespace std;
long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = (int) s.size();
    
    map <ll, ll> mp;
	map <ll, ll> ::iterator it;
	
	for(int i = 0 ; i < n;i++){
    	mp[s[i]]--;
		mp[t[i]]++;
    }
    mp[0]++;
    ll cnt = 0, res, last = 0;
    
    for( it = mp.begin() ; it!=mp.end() ; it++){
    	cnt += it->second;	
		//cout << cnt<< " - " <<it->first<<" - " <<it->second<<endl;
    	if(cnt < 0){
    	//	cout << cnt <<" ok " <<it->first <<" - " << last << endl; 	
			res+= ( cnt * (it->first - last) );
		}
		last = it->first;
		
    }
    return res;
}

Compilation message

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:29:12: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
   29 |     return res;
      |            ^~~

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB n = 2
2 Correct 1 ms 492 KB n = 2
3 Correct 1 ms 364 KB n = 2
4 Correct 1 ms 364 KB n = 2
5 Correct 1 ms 364 KB n = 2
6 Incorrect 1 ms 364 KB answer is not correct: -69049296 instead of 523688153
7 Halted 0 ms 0 KB -

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB n = 2
2 Correct 1 ms 492 KB n = 2
3 Correct 1 ms 364 KB n = 2
4 Correct 1 ms 364 KB n = 2
5 Correct 1 ms 364 KB n = 2
6 Incorrect 1 ms 364 KB answer is not correct: -69049296 instead of 523688153
7 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 526 ms 31780 KB n = 199999
2 Incorrect 501 ms 32364 KB answer is not correct: -322350036594 instead of 1
3 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB n = 2
2 Correct 1 ms 492 KB n = 2
3 Correct 1 ms 364 KB n = 2
4 Correct 1 ms 364 KB n = 2
5 Correct 1 ms 364 KB n = 2
6 Incorrect 1 ms 364 KB answer is not correct: -69049296 instead of 523688153
7 Halted 0 ms 0 KB -