Submission #1033480

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033480		PokemonMaster	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include<bits/stdc++.h>
using namespace std;
#include "dna.h"
#include <cstdio>
#include <cassert>
#include <string>
#include <vector>
void init(string a,string b)
{
    cin>>a>>b;
}
int get_distance(int x,int y)
{
        string na="",nb="";
        map <char,int> mp1,mp2;
        for(int i=x;i<=y;i++)
        {
            na+=a[i];
            nb+=b[i];
        }
        string ca=na,cb=nb;
        sort(ca.begin(),ca.end());
        sort(cb.begin(),cb.end());
        if(ca!=cb)
        {
            return -1;
        }
        int cnt=0,res=0;
        while(na!=nb)
        {
            int ind=0;
            for(int j=cnt;j<=n;j++)
            {
                if(na[j]==nb[cnt])
                {
                    ind=j;
                    break;
                }
            }
            while(ind!=cnt)
            {
                swap(na[ind],na[ind-1]);
                ind--;
                res++;
            }
            cnt++;
        }
        return res;
}
int main() {
	int n, q;
	assert(scanf("%d %d", &n, &q) == 2);
	char A[n+1], B[n+1];
	assert(scanf("%s", A) == 1);
	assert(scanf("%s", B) == 1);
	std::string a = std::string(A);
	std::string b = std::string(B);
	std::vector<int> x(q), y(q);
	for (int i = 0; i < q; i++) {
		assert(scanf("%d %d", &x[i], &y[i]) == 2);
	}
	fclose(stdin);
	std::vector<int> results(q);
	init(a, b);
	for (int i = 0; i < q; i++) {
		results[i] = get_distance(x[i], y[i]);
	}
	for (int i = 0; i < q; i++) {
		printf("%d\n", results[i]);
	}
	fclose(stdout);
	return 0;
}

Compilation message (stderr)

dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:18:17: error: 'a' was not declared in this scope
   18 |             na+=a[i];
      |                 ^
dna.cpp:19:17: error: 'b' was not declared in this scope
   19 |             nb+=b[i];
      |                 ^
dna.cpp:32:30: error: 'n' was not declared in this scope
   32 |             for(int j=cnt;j<=n;j++)
      |                              ^