Submission #100054

#	Time	Username	Problem	Language	Result	Execution time	Memory
100054		helloworldworld	Roller Coaster Railroad (IOI16_railroad)	C++14	Compilation error	0 ms	0 KiB

railroad

#include "railroad.h"

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = (int) s.size();
    int arr[n];
    for(int i=0;i<n;i++)
        arr[i]=i;
    long long mini,cur;
    for(int i=1;i<n;i++){
        if(t[i-1]>s[i])
            cur+=t[i-1]-s[i];
    }
    mini=cur;
    while(next_permutation(arr,arr+n)){
        for(int i=1;i<n;i++){
            if(t[i-1]>s[i])
                cur+=t[i-1]-s[i];
        }
        if(mini>cur) mini=cur;
    }
    return mini;
}

Compilation message (stderr)

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:14:11: error: 'next_permutation' was not declared in this scope
     while(next_permutation(arr,arr+n)){
           ^~~~~~~~~~~~~~~~