Submission #437033

#	Time	Username	Problem	Language	Result	Execution time	Memory
437033		WnRS	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include "dna.h"
#include <bits/stdc++.h>
using namespace std;

string a,b;

int get_distance(int x, int y) {
    int cnt=0, a=0,t=0,c=0;
    for(int i = x ; i <= y ; i++) {
        if(a[i] != b[i]) cnt++;
        if(a[i]=='A') a++;
        else if(a[i] == 'T') t++;
        else c++;
        if(b[i]=='A') a--;
        else if(b[i]=='T') t--;
        else c--; 
    }
    return (!a&&!t&&!c?(cnt+1)/2:-1);
}

void init(string aa, string bb) {
    a=aa,b=bb;
}

Compilation message (stderr)

dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:10:13: error: invalid types 'int[int]' for array subscript
   10 |         if(a[i] != b[i]) cnt++;
      |             ^
dna.cpp:11:13: error: invalid types 'int[int]' for array subscript
   11 |         if(a[i]=='A') a++;
      |             ^
dna.cpp:12:18: error: invalid types 'int[int]' for array subscript
   12 |         else if(a[i] == 'T') t++;
      |                  ^