#include <bits/stdc++.h>
#define int long long
#define mi(x, y) (x = min(x, y))
#define ma(x, y) (x = max(x, y))
using namespace std;
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
int n, q;
cin >> n >> q;
string a, b;
cin >> a >> b;
int sum = 0;
for(int i = 0; i < n; ++i){
int gop = (i % 2 ? -1 : 1);
sum += (a[i] - b[i]) * gop;
}
cout << (!(sum % 26) ? "da\n" : "ne\n");
for(int i = 0; i < q; ++i){
int x;
char c;
cin >> x >> c;
--x;
int gop = (x % 2 ? -1 : 1);
sum -= gop * a[x];
a[x] = c;
sum += gop * a[x];
cout << (!(sum % 26) ? "da\n" : "ne\n");
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
236 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
236 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
244 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
236 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
244 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
5 ms |
3080 KB |
Output is correct |
32 |
Correct |
5 ms |
3100 KB |
Output is correct |
33 |
Correct |
5 ms |
3048 KB |
Output is correct |
34 |
Correct |
5 ms |
2800 KB |
Output is correct |
35 |
Correct |
5 ms |
3040 KB |
Output is correct |
36 |
Correct |
4 ms |
2928 KB |
Output is correct |
37 |
Correct |
5 ms |
3124 KB |
Output is correct |
38 |
Correct |
5 ms |
3024 KB |
Output is correct |
39 |
Correct |
5 ms |
3152 KB |
Output is correct |
40 |
Correct |
5 ms |
3040 KB |
Output is correct |
41 |
Correct |
5 ms |
2944 KB |
Output is correct |
42 |
Correct |
5 ms |
3004 KB |
Output is correct |
43 |
Correct |
7 ms |
2992 KB |
Output is correct |
44 |
Correct |
5 ms |
3040 KB |
Output is correct |
45 |
Correct |
5 ms |
3032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
236 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
8 ms |
852 KB |
Output is correct |
17 |
Correct |
8 ms |
852 KB |
Output is correct |
18 |
Correct |
9 ms |
852 KB |
Output is correct |
19 |
Correct |
8 ms |
860 KB |
Output is correct |
20 |
Correct |
11 ms |
736 KB |
Output is correct |
21 |
Correct |
8 ms |
852 KB |
Output is correct |
22 |
Correct |
11 ms |
852 KB |
Output is correct |
23 |
Correct |
8 ms |
852 KB |
Output is correct |
24 |
Correct |
8 ms |
836 KB |
Output is correct |
25 |
Correct |
9 ms |
828 KB |
Output is correct |
26 |
Correct |
8 ms |
820 KB |
Output is correct |
27 |
Correct |
8 ms |
872 KB |
Output is correct |
28 |
Correct |
8 ms |
852 KB |
Output is correct |
29 |
Correct |
8 ms |
852 KB |
Output is correct |
30 |
Correct |
8 ms |
820 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
236 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
244 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
8 ms |
852 KB |
Output is correct |
32 |
Correct |
8 ms |
852 KB |
Output is correct |
33 |
Correct |
9 ms |
852 KB |
Output is correct |
34 |
Correct |
8 ms |
860 KB |
Output is correct |
35 |
Correct |
11 ms |
736 KB |
Output is correct |
36 |
Correct |
8 ms |
852 KB |
Output is correct |
37 |
Correct |
11 ms |
852 KB |
Output is correct |
38 |
Correct |
8 ms |
852 KB |
Output is correct |
39 |
Correct |
8 ms |
836 KB |
Output is correct |
40 |
Correct |
9 ms |
828 KB |
Output is correct |
41 |
Correct |
8 ms |
820 KB |
Output is correct |
42 |
Correct |
8 ms |
872 KB |
Output is correct |
43 |
Correct |
8 ms |
852 KB |
Output is correct |
44 |
Correct |
8 ms |
852 KB |
Output is correct |
45 |
Correct |
8 ms |
820 KB |
Output is correct |
46 |
Correct |
12 ms |
976 KB |
Output is correct |
47 |
Correct |
10 ms |
852 KB |
Output is correct |
48 |
Correct |
10 ms |
852 KB |
Output is correct |
49 |
Correct |
11 ms |
852 KB |
Output is correct |
50 |
Correct |
10 ms |
756 KB |
Output is correct |
51 |
Correct |
10 ms |
792 KB |
Output is correct |
52 |
Correct |
10 ms |
784 KB |
Output is correct |
53 |
Correct |
10 ms |
884 KB |
Output is correct |
54 |
Correct |
12 ms |
852 KB |
Output is correct |
55 |
Correct |
10 ms |
840 KB |
Output is correct |
56 |
Correct |
10 ms |
784 KB |
Output is correct |
57 |
Correct |
10 ms |
780 KB |
Output is correct |
58 |
Correct |
10 ms |
844 KB |
Output is correct |
59 |
Correct |
10 ms |
852 KB |
Output is correct |
60 |
Correct |
10 ms |
852 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
236 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
244 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
5 ms |
3080 KB |
Output is correct |
32 |
Correct |
5 ms |
3100 KB |
Output is correct |
33 |
Correct |
5 ms |
3048 KB |
Output is correct |
34 |
Correct |
5 ms |
2800 KB |
Output is correct |
35 |
Correct |
5 ms |
3040 KB |
Output is correct |
36 |
Correct |
4 ms |
2928 KB |
Output is correct |
37 |
Correct |
5 ms |
3124 KB |
Output is correct |
38 |
Correct |
5 ms |
3024 KB |
Output is correct |
39 |
Correct |
5 ms |
3152 KB |
Output is correct |
40 |
Correct |
5 ms |
3040 KB |
Output is correct |
41 |
Correct |
5 ms |
2944 KB |
Output is correct |
42 |
Correct |
5 ms |
3004 KB |
Output is correct |
43 |
Correct |
7 ms |
2992 KB |
Output is correct |
44 |
Correct |
5 ms |
3040 KB |
Output is correct |
45 |
Correct |
5 ms |
3032 KB |
Output is correct |
46 |
Correct |
8 ms |
852 KB |
Output is correct |
47 |
Correct |
8 ms |
852 KB |
Output is correct |
48 |
Correct |
9 ms |
852 KB |
Output is correct |
49 |
Correct |
8 ms |
860 KB |
Output is correct |
50 |
Correct |
11 ms |
736 KB |
Output is correct |
51 |
Correct |
8 ms |
852 KB |
Output is correct |
52 |
Correct |
11 ms |
852 KB |
Output is correct |
53 |
Correct |
8 ms |
852 KB |
Output is correct |
54 |
Correct |
8 ms |
836 KB |
Output is correct |
55 |
Correct |
9 ms |
828 KB |
Output is correct |
56 |
Correct |
8 ms |
820 KB |
Output is correct |
57 |
Correct |
8 ms |
872 KB |
Output is correct |
58 |
Correct |
8 ms |
852 KB |
Output is correct |
59 |
Correct |
8 ms |
852 KB |
Output is correct |
60 |
Correct |
8 ms |
820 KB |
Output is correct |
61 |
Correct |
12 ms |
976 KB |
Output is correct |
62 |
Correct |
10 ms |
852 KB |
Output is correct |
63 |
Correct |
10 ms |
852 KB |
Output is correct |
64 |
Correct |
11 ms |
852 KB |
Output is correct |
65 |
Correct |
10 ms |
756 KB |
Output is correct |
66 |
Correct |
10 ms |
792 KB |
Output is correct |
67 |
Correct |
10 ms |
784 KB |
Output is correct |
68 |
Correct |
10 ms |
884 KB |
Output is correct |
69 |
Correct |
12 ms |
852 KB |
Output is correct |
70 |
Correct |
10 ms |
840 KB |
Output is correct |
71 |
Correct |
10 ms |
784 KB |
Output is correct |
72 |
Correct |
10 ms |
780 KB |
Output is correct |
73 |
Correct |
10 ms |
844 KB |
Output is correct |
74 |
Correct |
10 ms |
852 KB |
Output is correct |
75 |
Correct |
10 ms |
852 KB |
Output is correct |
76 |
Correct |
113 ms |
5880 KB |
Output is correct |
77 |
Correct |
109 ms |
5968 KB |
Output is correct |
78 |
Correct |
115 ms |
5576 KB |
Output is correct |
79 |
Correct |
108 ms |
5628 KB |
Output is correct |
80 |
Correct |
108 ms |
5624 KB |
Output is correct |
81 |
Correct |
107 ms |
5756 KB |
Output is correct |
82 |
Correct |
108 ms |
5592 KB |
Output is correct |
83 |
Correct |
116 ms |
5704 KB |
Output is correct |
84 |
Correct |
115 ms |
5616 KB |
Output is correct |
85 |
Correct |
107 ms |
5664 KB |
Output is correct |
86 |
Correct |
132 ms |
5976 KB |
Output is correct |
87 |
Correct |
114 ms |
6024 KB |
Output is correct |
88 |
Correct |
112 ms |
5956 KB |
Output is correct |
89 |
Correct |
119 ms |
5692 KB |
Output is correct |
90 |
Correct |
109 ms |
6024 KB |
Output is correct |