Submission #484506

#	Time	Username	Problem	Language	Result	Execution time	Memory
484506		M4mou	Counting Mushrooms (IOI20_mushrooms)	C++17	Compilation error	0 ms	0 KiB

mushrooms

//#include "mushrooms.h"

#include <bits/stdc++.h>


using namespace std;
 string s;
int use_machine(vector<int> a){
    int cnt = 0;
    for(int i = 0;i<((int)a.size())-1;i++){
        if(s[a[i]] != s[a[i+1]])cnt++;
    }
    return cnt;
}



int count_mushrooms(int n) {
	int cnt = 1;
    for(int i = 1;i<n-1;i+=2){
        vector<int> a;

        a.push_back(i);
         a.push_back(0);
         a.push_back(i+1);
        int x = use_machine(a);
        if(x == 0){
            cnt += 2;
        }
        else if(x == 1){
            cnt += 1;
        }

    }



    if(n%2==0){
         vector<int> a;

         a.push_back(0);
        a.push_back(n-1);
         int x = use_machine(a);
        if(x == 0)cnt++;

    }
    return cnt;

}

int main(){
    while(1){
    cin >> s;
    cout << count_mushrooms(s.size()) << endl;
    }
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cc7w9Cu7.o: in function `use_machine(std::vector<int, std::allocator<int> >)':
stub.cpp:(.text+0x150): multiple definition of `use_machine(std::vector<int, std::allocator<int> >)'; /tmp/cc9o0Bm4.o:mushrooms.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/cc7w9Cu7.o: in function `main':
stub.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc9o0Bm4.o:mushrooms.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status