#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
int n,q; cin>>n>>q;
string a,b; cin>>a>>b;
vector<ll> va, vb;
va.push_back(0ll);
vb.push_back(0ll);
ll sa=0, sb=0;
for (int i=1; i<=n; i++) {
if (n%2==i%2) {
va.push_back(a[i-1]-'a'+1);
vb.push_back(b[i-1]-'a'+1);
} else {
va.push_back(-(a[i-1]-'a'+1));
vb.push_back(-(b[i-1]-'a'+1));
}
sa+=va[i];
sb+=vb[i];
}
if ((sa-sb)%26==0) cout<<"da\n";
else cout<<"ne\n";
while (q--) {
int p; char c; cin>>p>>c;
int a=c-'a'+1;
sa-=va[p];
if (n%2==p%2) va[p]=a;
else va[p]=-a;
sa+=va[p];
if ((sa-sb)%26==0) cout<<"da\n";
else cout<<"ne\n";
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
38 ms |
19244 KB |
Output is correct |
32 |
Correct |
39 ms |
19252 KB |
Output is correct |
33 |
Correct |
39 ms |
19416 KB |
Output is correct |
34 |
Correct |
45 ms |
19404 KB |
Output is correct |
35 |
Correct |
39 ms |
19440 KB |
Output is correct |
36 |
Correct |
39 ms |
19244 KB |
Output is correct |
37 |
Correct |
38 ms |
19492 KB |
Output is correct |
38 |
Correct |
39 ms |
19240 KB |
Output is correct |
39 |
Correct |
39 ms |
19508 KB |
Output is correct |
40 |
Correct |
38 ms |
19256 KB |
Output is correct |
41 |
Correct |
45 ms |
19256 KB |
Output is correct |
42 |
Correct |
38 ms |
19500 KB |
Output is correct |
43 |
Correct |
39 ms |
19248 KB |
Output is correct |
44 |
Correct |
39 ms |
19256 KB |
Output is correct |
45 |
Correct |
38 ms |
19248 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
133 ms |
856 KB |
Output is correct |
17 |
Correct |
143 ms |
612 KB |
Output is correct |
18 |
Correct |
137 ms |
848 KB |
Output is correct |
19 |
Correct |
137 ms |
1104 KB |
Output is correct |
20 |
Correct |
135 ms |
624 KB |
Output is correct |
21 |
Correct |
127 ms |
596 KB |
Output is correct |
22 |
Correct |
128 ms |
540 KB |
Output is correct |
23 |
Correct |
127 ms |
504 KB |
Output is correct |
24 |
Correct |
136 ms |
508 KB |
Output is correct |
25 |
Correct |
131 ms |
880 KB |
Output is correct |
26 |
Correct |
136 ms |
1104 KB |
Output is correct |
27 |
Correct |
126 ms |
592 KB |
Output is correct |
28 |
Correct |
126 ms |
708 KB |
Output is correct |
29 |
Correct |
126 ms |
800 KB |
Output is correct |
30 |
Correct |
134 ms |
952 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
133 ms |
856 KB |
Output is correct |
32 |
Correct |
143 ms |
612 KB |
Output is correct |
33 |
Correct |
137 ms |
848 KB |
Output is correct |
34 |
Correct |
137 ms |
1104 KB |
Output is correct |
35 |
Correct |
135 ms |
624 KB |
Output is correct |
36 |
Correct |
127 ms |
596 KB |
Output is correct |
37 |
Correct |
128 ms |
540 KB |
Output is correct |
38 |
Correct |
127 ms |
504 KB |
Output is correct |
39 |
Correct |
136 ms |
508 KB |
Output is correct |
40 |
Correct |
131 ms |
880 KB |
Output is correct |
41 |
Correct |
136 ms |
1104 KB |
Output is correct |
42 |
Correct |
126 ms |
592 KB |
Output is correct |
43 |
Correct |
126 ms |
708 KB |
Output is correct |
44 |
Correct |
126 ms |
800 KB |
Output is correct |
45 |
Correct |
134 ms |
952 KB |
Output is correct |
46 |
Correct |
134 ms |
552 KB |
Output is correct |
47 |
Correct |
129 ms |
596 KB |
Output is correct |
48 |
Correct |
161 ms |
592 KB |
Output is correct |
49 |
Correct |
145 ms |
616 KB |
Output is correct |
50 |
Correct |
131 ms |
540 KB |
Output is correct |
51 |
Correct |
130 ms |
744 KB |
Output is correct |
52 |
Correct |
135 ms |
544 KB |
Output is correct |
53 |
Correct |
139 ms |
696 KB |
Output is correct |
54 |
Correct |
143 ms |
652 KB |
Output is correct |
55 |
Correct |
135 ms |
724 KB |
Output is correct |
56 |
Correct |
129 ms |
852 KB |
Output is correct |
57 |
Correct |
136 ms |
496 KB |
Output is correct |
58 |
Correct |
130 ms |
668 KB |
Output is correct |
59 |
Correct |
131 ms |
632 KB |
Output is correct |
60 |
Correct |
163 ms |
520 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
38 ms |
19244 KB |
Output is correct |
32 |
Correct |
39 ms |
19252 KB |
Output is correct |
33 |
Correct |
39 ms |
19416 KB |
Output is correct |
34 |
Correct |
45 ms |
19404 KB |
Output is correct |
35 |
Correct |
39 ms |
19440 KB |
Output is correct |
36 |
Correct |
39 ms |
19244 KB |
Output is correct |
37 |
Correct |
38 ms |
19492 KB |
Output is correct |
38 |
Correct |
39 ms |
19240 KB |
Output is correct |
39 |
Correct |
39 ms |
19508 KB |
Output is correct |
40 |
Correct |
38 ms |
19256 KB |
Output is correct |
41 |
Correct |
45 ms |
19256 KB |
Output is correct |
42 |
Correct |
38 ms |
19500 KB |
Output is correct |
43 |
Correct |
39 ms |
19248 KB |
Output is correct |
44 |
Correct |
39 ms |
19256 KB |
Output is correct |
45 |
Correct |
38 ms |
19248 KB |
Output is correct |
46 |
Correct |
133 ms |
856 KB |
Output is correct |
47 |
Correct |
143 ms |
612 KB |
Output is correct |
48 |
Correct |
137 ms |
848 KB |
Output is correct |
49 |
Correct |
137 ms |
1104 KB |
Output is correct |
50 |
Correct |
135 ms |
624 KB |
Output is correct |
51 |
Correct |
127 ms |
596 KB |
Output is correct |
52 |
Correct |
128 ms |
540 KB |
Output is correct |
53 |
Correct |
127 ms |
504 KB |
Output is correct |
54 |
Correct |
136 ms |
508 KB |
Output is correct |
55 |
Correct |
131 ms |
880 KB |
Output is correct |
56 |
Correct |
136 ms |
1104 KB |
Output is correct |
57 |
Correct |
126 ms |
592 KB |
Output is correct |
58 |
Correct |
126 ms |
708 KB |
Output is correct |
59 |
Correct |
126 ms |
800 KB |
Output is correct |
60 |
Correct |
134 ms |
952 KB |
Output is correct |
61 |
Correct |
134 ms |
552 KB |
Output is correct |
62 |
Correct |
129 ms |
596 KB |
Output is correct |
63 |
Correct |
161 ms |
592 KB |
Output is correct |
64 |
Correct |
145 ms |
616 KB |
Output is correct |
65 |
Correct |
131 ms |
540 KB |
Output is correct |
66 |
Correct |
130 ms |
744 KB |
Output is correct |
67 |
Correct |
135 ms |
544 KB |
Output is correct |
68 |
Correct |
139 ms |
696 KB |
Output is correct |
69 |
Correct |
143 ms |
652 KB |
Output is correct |
70 |
Correct |
135 ms |
724 KB |
Output is correct |
71 |
Correct |
129 ms |
852 KB |
Output is correct |
72 |
Correct |
136 ms |
496 KB |
Output is correct |
73 |
Correct |
130 ms |
668 KB |
Output is correct |
74 |
Correct |
131 ms |
632 KB |
Output is correct |
75 |
Correct |
163 ms |
520 KB |
Output is correct |
76 |
Execution timed out |
1040 ms |
21296 KB |
Time limit exceeded |
77 |
Halted |
0 ms |
0 KB |
- |