Submission #998131

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
9981312024-06-13 10:16:41MilosMilutinovicBliskost (COI23_bliskost)C++14
100 / 100
181 ms16004 KiB
#include <bits/stdc++.h>
using namespace std;
const int N = 1e6 + 10;
int n, q;
char s[N], t[N];
int main() {
scanf("%d%d", &n, &q);
scanf("%s", s + 1);
scanf("%s", t + 1);
int d = 0;
for (int i = 1; i < n; i++)
d = (d + (t[i] - 'a') * (i % 2 == (n - 1) % 2 ? 1 : -1) + (s[i] - 'a') * (i % 2 == (n - 1) % 2 ? -1 : 1) + 52) % 26;
if (((((int) (s[n] + d) % 26) + 52) % 26) == ((int) t[n] % 26)) printf("da\n");
else printf("ne\n");
while (q--) {
int p;
char c;
scanf("%d %c", &p, &c);
if (p < n) d = (d - ((t[p] - 'a') * (p % 2 == (n - 1) % 2 ? 1 : -1) + (s[p] - 'a') * (p % 2 == (n - 1) % 2 ? -1 : 1)) + 52) % 26;
s[p] = c;
if (p < n) d = (d + (t[p] - 'a') * (p % 2 == (n - 1) % 2 ? 1 : -1) + (s[p] - 'a') * (p % 2 == (n - 1) % 2 ? -1 : 1) + 52) % 26;
if (((((int) (s[n] + d) % 26) + 52) % 26) == ((int) t[n] % 26)) printf("da\n");
else printf("ne\n");
}
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%d%d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~
Main.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     scanf("%s", s + 1);
      |     ~~~~~^~~~~~~~~~~~~
Main.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%s", t + 1);
      |     ~~~~~^~~~~~~~~~~~~
Main.cpp:18:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         scanf("%d %c", &p, &c);
      |         ~~~~~^~~~~~~~~~~~~~~~~
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