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Submission #432093

# Submission time Handle Problem Language Result Execution time Memory
432093 2021-06-17T20:40:49 Z REALITYNB Rail (IOI14_rail) C++17
30 / 100
 86 ms 504 KB 
#include <bits/stdc++.h>
#include "rail.h"
using namespace std;
void findLocation(int n ,int first , int* loc , int* stype){
    loc[0]=first ;
    stype[0]=1;
    if(n==1) return ;
    vector<int> a(n) ;
    for(int i=0;i<n;i++) a[i]=getDistance(i,0) ;
    int mn = 1e9;
    for(int i=1;i<n;i++) mn=min(mn,a[i]) ;
    int second ;
    for(int i=1;i<n;i++) if(mn==a[i]) second=i;
    vector<int> b(n) ;
    stype[second]=2,loc[second]=first+mn;
    for(int i=0;i<n;i++) b[i]=getDistance(i,second);
    for(int i=0;i<n;i++){
        if(i==second||i==0) continue ;
        if(a[i]>b[i]){
            stype[i]=1;
            loc[i]=loc[second]-b[i] ;
        }
        else{
            stype[i]=2;
            loc[i]=loc[0]+a[i];
        }
    }
    return ;
}

Compilation message

rail.cpp: In function 'void findLocation(int, int, int*, int*)':
rail.cpp:15:11: warning: 'second' may be used uninitialized in this function [-Wmaybe-uninitialized]
   15 |     stype[second]=2,loc[second]=first+mn;
      |           ^~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 376 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 376 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 352 KB Output is correct

Subtask #3
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 86 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Incorrect 85 ms 496 KB Output isn't correct
2 Halted 0 ms 0 KB -