#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define vi vector<ll>
#define vvi vector<vector<ll>>
#define vs vector<string>
#define vc vector<char>
#define vb vector<bool>
#define vp vector<pair<ll, ll>>
#define pp pair<ll, ll>
#define qi queue<ll>
#define qp queue<pp>
#define pqi priority_queue<ll>
#define pqp priority_queue<pp>
#define mi map<ll, ll>
#define mpi map<pp, ll>
#define mip map<ll, pp>
#define mpp map<pp, pp>
#define mb map<ll, bool>
#define si set<ll>
#define sp set<pp>
#define mod 1000000007
#define rep(a, b) for(int a = 0; a < (b); a++)
#define inf 1000000000000000000
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int n, q;
cin >> n >> q;
string s1, s2;
cin >> s1 >> s2;
ll odd = 0;
ll even = 0;
for (int i = 0; i < n; i++) {
if (i % 2 == 0) {
even += s1[i] - s2[i];
}
else {
odd += s1[i] - s2[i];
}
}
if ((even - odd) % 26 == 0) {
cout << "da\n";
}
else {
cout << "ne\n";
}
while (q--) {
int a;
char ch;
cin >> a >> ch;
a--;
if (a % 2 == 0) {
even -= s1[a] - s2[a];
s1[a] = ch;
even += s1[a] - s2[a];
}
else {
odd -= s1[a] - s2[a];
s1[a] = ch;
odd += s1[a] - s2[a];
}
if ((even - odd) % 26 == 0) {
cout << "da\n";
}
else {
cout << "ne\n";
}
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
600 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
600 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
344 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
600 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
344 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
5 ms |
3820 KB |
Output is correct |
32 |
Correct |
6 ms |
3828 KB |
Output is correct |
33 |
Correct |
5 ms |
3820 KB |
Output is correct |
34 |
Correct |
5 ms |
3820 KB |
Output is correct |
35 |
Correct |
6 ms |
4052 KB |
Output is correct |
36 |
Correct |
6 ms |
4084 KB |
Output is correct |
37 |
Correct |
5 ms |
4032 KB |
Output is correct |
38 |
Correct |
5 ms |
3832 KB |
Output is correct |
39 |
Correct |
5 ms |
4076 KB |
Output is correct |
40 |
Correct |
5 ms |
4064 KB |
Output is correct |
41 |
Correct |
5 ms |
3832 KB |
Output is correct |
42 |
Correct |
5 ms |
3828 KB |
Output is correct |
43 |
Correct |
5 ms |
4076 KB |
Output is correct |
44 |
Correct |
6 ms |
3820 KB |
Output is correct |
45 |
Correct |
6 ms |
3820 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
600 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
9 ms |
1112 KB |
Output is correct |
17 |
Correct |
9 ms |
1112 KB |
Output is correct |
18 |
Correct |
9 ms |
1112 KB |
Output is correct |
19 |
Correct |
9 ms |
1112 KB |
Output is correct |
20 |
Correct |
9 ms |
1112 KB |
Output is correct |
21 |
Correct |
9 ms |
1112 KB |
Output is correct |
22 |
Correct |
9 ms |
1368 KB |
Output is correct |
23 |
Correct |
9 ms |
1112 KB |
Output is correct |
24 |
Correct |
9 ms |
1108 KB |
Output is correct |
25 |
Correct |
9 ms |
1112 KB |
Output is correct |
26 |
Correct |
9 ms |
1112 KB |
Output is correct |
27 |
Correct |
9 ms |
1112 KB |
Output is correct |
28 |
Correct |
9 ms |
1116 KB |
Output is correct |
29 |
Correct |
9 ms |
1112 KB |
Output is correct |
30 |
Correct |
9 ms |
1112 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
600 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
344 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
9 ms |
1112 KB |
Output is correct |
32 |
Correct |
9 ms |
1112 KB |
Output is correct |
33 |
Correct |
9 ms |
1112 KB |
Output is correct |
34 |
Correct |
9 ms |
1112 KB |
Output is correct |
35 |
Correct |
9 ms |
1112 KB |
Output is correct |
36 |
Correct |
9 ms |
1112 KB |
Output is correct |
37 |
Correct |
9 ms |
1368 KB |
Output is correct |
38 |
Correct |
9 ms |
1112 KB |
Output is correct |
39 |
Correct |
9 ms |
1108 KB |
Output is correct |
40 |
Correct |
9 ms |
1112 KB |
Output is correct |
41 |
Correct |
9 ms |
1112 KB |
Output is correct |
42 |
Correct |
9 ms |
1112 KB |
Output is correct |
43 |
Correct |
9 ms |
1116 KB |
Output is correct |
44 |
Correct |
9 ms |
1112 KB |
Output is correct |
45 |
Correct |
9 ms |
1112 KB |
Output is correct |
46 |
Correct |
10 ms |
1112 KB |
Output is correct |
47 |
Correct |
11 ms |
1112 KB |
Output is correct |
48 |
Correct |
10 ms |
1112 KB |
Output is correct |
49 |
Correct |
11 ms |
1112 KB |
Output is correct |
50 |
Correct |
10 ms |
1112 KB |
Output is correct |
51 |
Correct |
10 ms |
1112 KB |
Output is correct |
52 |
Correct |
10 ms |
1112 KB |
Output is correct |
53 |
Correct |
10 ms |
1112 KB |
Output is correct |
54 |
Correct |
10 ms |
1112 KB |
Output is correct |
55 |
Correct |
10 ms |
1112 KB |
Output is correct |
56 |
Correct |
14 ms |
1112 KB |
Output is correct |
57 |
Correct |
10 ms |
1112 KB |
Output is correct |
58 |
Correct |
10 ms |
1112 KB |
Output is correct |
59 |
Correct |
10 ms |
1112 KB |
Output is correct |
60 |
Correct |
10 ms |
1112 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
600 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
344 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
5 ms |
3820 KB |
Output is correct |
32 |
Correct |
6 ms |
3828 KB |
Output is correct |
33 |
Correct |
5 ms |
3820 KB |
Output is correct |
34 |
Correct |
5 ms |
3820 KB |
Output is correct |
35 |
Correct |
6 ms |
4052 KB |
Output is correct |
36 |
Correct |
6 ms |
4084 KB |
Output is correct |
37 |
Correct |
5 ms |
4032 KB |
Output is correct |
38 |
Correct |
5 ms |
3832 KB |
Output is correct |
39 |
Correct |
5 ms |
4076 KB |
Output is correct |
40 |
Correct |
5 ms |
4064 KB |
Output is correct |
41 |
Correct |
5 ms |
3832 KB |
Output is correct |
42 |
Correct |
5 ms |
3828 KB |
Output is correct |
43 |
Correct |
5 ms |
4076 KB |
Output is correct |
44 |
Correct |
6 ms |
3820 KB |
Output is correct |
45 |
Correct |
6 ms |
3820 KB |
Output is correct |
46 |
Correct |
9 ms |
1112 KB |
Output is correct |
47 |
Correct |
9 ms |
1112 KB |
Output is correct |
48 |
Correct |
9 ms |
1112 KB |
Output is correct |
49 |
Correct |
9 ms |
1112 KB |
Output is correct |
50 |
Correct |
9 ms |
1112 KB |
Output is correct |
51 |
Correct |
9 ms |
1112 KB |
Output is correct |
52 |
Correct |
9 ms |
1368 KB |
Output is correct |
53 |
Correct |
9 ms |
1112 KB |
Output is correct |
54 |
Correct |
9 ms |
1108 KB |
Output is correct |
55 |
Correct |
9 ms |
1112 KB |
Output is correct |
56 |
Correct |
9 ms |
1112 KB |
Output is correct |
57 |
Correct |
9 ms |
1112 KB |
Output is correct |
58 |
Correct |
9 ms |
1116 KB |
Output is correct |
59 |
Correct |
9 ms |
1112 KB |
Output is correct |
60 |
Correct |
9 ms |
1112 KB |
Output is correct |
61 |
Correct |
10 ms |
1112 KB |
Output is correct |
62 |
Correct |
11 ms |
1112 KB |
Output is correct |
63 |
Correct |
10 ms |
1112 KB |
Output is correct |
64 |
Correct |
11 ms |
1112 KB |
Output is correct |
65 |
Correct |
10 ms |
1112 KB |
Output is correct |
66 |
Correct |
10 ms |
1112 KB |
Output is correct |
67 |
Correct |
10 ms |
1112 KB |
Output is correct |
68 |
Correct |
10 ms |
1112 KB |
Output is correct |
69 |
Correct |
10 ms |
1112 KB |
Output is correct |
70 |
Correct |
10 ms |
1112 KB |
Output is correct |
71 |
Correct |
14 ms |
1112 KB |
Output is correct |
72 |
Correct |
10 ms |
1112 KB |
Output is correct |
73 |
Correct |
10 ms |
1112 KB |
Output is correct |
74 |
Correct |
10 ms |
1112 KB |
Output is correct |
75 |
Correct |
10 ms |
1112 KB |
Output is correct |
76 |
Correct |
121 ms |
11712 KB |
Output is correct |
77 |
Correct |
114 ms |
16344 KB |
Output is correct |
78 |
Correct |
119 ms |
16036 KB |
Output is correct |
79 |
Correct |
117 ms |
16088 KB |
Output is correct |
80 |
Correct |
115 ms |
16000 KB |
Output is correct |
81 |
Correct |
114 ms |
16000 KB |
Output is correct |
82 |
Correct |
130 ms |
16180 KB |
Output is correct |
83 |
Correct |
116 ms |
15992 KB |
Output is correct |
84 |
Correct |
118 ms |
16064 KB |
Output is correct |
85 |
Correct |
113 ms |
16060 KB |
Output is correct |
86 |
Correct |
117 ms |
16364 KB |
Output is correct |
87 |
Correct |
114 ms |
16380 KB |
Output is correct |
88 |
Correct |
114 ms |
16588 KB |
Output is correct |
89 |
Correct |
119 ms |
15992 KB |
Output is correct |
90 |
Correct |
114 ms |
16576 KB |
Output is correct |