Submission #1114014

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114014		SalihSahin	Bliskost (COI23_bliskost)	C++14	57 / 100	1058 ms	19768 KiB

Main

#include <bits/stdc++.h>
#define pb push_back
#define int long long
using namespace std;

const int inf = 1e9 + 10;

int modval(int x){
   int chl = 26;
   int res = (x + 26 * inf)%26;
   return res;
}

int32_t main(){
   ios_base::sync_with_stdio(false);
   cin.tie(0); cout.tie(0);
   int n, q;
   cin>>n>>q;
   string a, b;
   cin>>a>>b;
   vector<int> delt(n), tot(2);
   for(int i = 0; i < n; i++){
      delt[i] = a[i] - b[i];
      tot[i%2] += delt[i];
   }
   if(modval(tot[0]) == modval(tot[1])) cout<<"da"<<endl;
   else cout<<"ne"<<endl;

   while(q--){
      int ind;
      char c;
      cin>>ind>>c;
      ind--;

      tot[ind%2] -= delt[ind];
      a[ind] = c;
      delt[ind] = a[ind] - b[ind];
      tot[ind%2] += delt[ind];

      if(modval(tot[0]) == modval(tot[1])) cout<<"da"<<endl;
      else cout<<"ne"<<endl;
   }
   return 0;
}

Compilation message (stderr)

Main.cpp: In function 'long long int modval(long long int)':
Main.cpp:9:8: warning: unused variable 'chl' [-Wunused-variable]
    9 |    int chl = 26;
      |        ^~~

• Subtask 1: 7 / 7
• Subtask 2: 8 / 8
• Subtask 3: 13 / 13
• Subtask 4: 12 / 12
• Subtask 5: 17 / 17
• Subtask 6: 0 / 43