#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define fs first
#define sc second
#define pb push_back
void solve(){
int n,q;
cin>>n>>q;
string s1,s2;
cin>>s1>>s2;
int s=0;
for(int i=0;i<n;i++){
if(i%2)s+=s1[i]-s2[i];
else s+=s2[i]-s1[i];
}
if(s%26)cout<<"ne\n";
else cout<<"da\n";
while(q--){
int x;
char c;
cin>>x>>c;
x--;
if(x%2)s-=s1[x]-s2[x];
else s-=s2[x]-s1[x];
s1[x]=c;
if(x%2)s+=s1[x]-s2[x];
else s+=s2[x]-s1[x];
if(s%26)cout<<"ne\n";
else cout<<"da\n";
}
}
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
solve();
}
# |
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 |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 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 |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 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 |
392 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
356 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
356 KB |
Output is correct |
21 |
Correct |
0 ms |
356 KB |
Output is correct |
22 |
Correct |
0 ms |
356 KB |
Output is correct |
23 |
Correct |
0 ms |
360 KB |
Output is correct |
24 |
Correct |
0 ms |
360 KB |
Output is correct |
25 |
Correct |
0 ms |
360 KB |
Output is correct |
26 |
Correct |
0 ms |
360 KB |
Output is correct |
27 |
Correct |
0 ms |
360 KB |
Output is correct |
28 |
Correct |
0 ms |
360 KB |
Output is correct |
29 |
Correct |
0 ms |
360 KB |
Output is correct |
30 |
Correct |
0 ms |
356 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 |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 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 |
392 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
356 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
356 KB |
Output is correct |
21 |
Correct |
0 ms |
356 KB |
Output is correct |
22 |
Correct |
0 ms |
356 KB |
Output is correct |
23 |
Correct |
0 ms |
360 KB |
Output is correct |
24 |
Correct |
0 ms |
360 KB |
Output is correct |
25 |
Correct |
0 ms |
360 KB |
Output is correct |
26 |
Correct |
0 ms |
360 KB |
Output is correct |
27 |
Correct |
0 ms |
360 KB |
Output is correct |
28 |
Correct |
0 ms |
360 KB |
Output is correct |
29 |
Correct |
0 ms |
360 KB |
Output is correct |
30 |
Correct |
0 ms |
356 KB |
Output is correct |
31 |
Correct |
4 ms |
4596 KB |
Output is correct |
32 |
Correct |
4 ms |
4596 KB |
Output is correct |
33 |
Correct |
4 ms |
4512 KB |
Output is correct |
34 |
Correct |
5 ms |
4456 KB |
Output is correct |
35 |
Correct |
4 ms |
4412 KB |
Output is correct |
36 |
Correct |
4 ms |
4848 KB |
Output is correct |
37 |
Correct |
4 ms |
4804 KB |
Output is correct |
38 |
Correct |
5 ms |
4444 KB |
Output is correct |
39 |
Correct |
4 ms |
4856 KB |
Output is correct |
40 |
Correct |
4 ms |
4856 KB |
Output is correct |
41 |
Correct |
5 ms |
4516 KB |
Output is correct |
42 |
Correct |
4 ms |
4476 KB |
Output is correct |
43 |
Correct |
5 ms |
4868 KB |
Output is correct |
44 |
Correct |
5 ms |
4532 KB |
Output is correct |
45 |
Correct |
5 ms |
4612 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 |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 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 |
7 ms |
996 KB |
Output is correct |
17 |
Correct |
7 ms |
1128 KB |
Output is correct |
18 |
Correct |
7 ms |
1128 KB |
Output is correct |
19 |
Correct |
8 ms |
1128 KB |
Output is correct |
20 |
Correct |
7 ms |
1116 KB |
Output is correct |
21 |
Correct |
6 ms |
1116 KB |
Output is correct |
22 |
Correct |
8 ms |
1100 KB |
Output is correct |
23 |
Correct |
6 ms |
1060 KB |
Output is correct |
24 |
Correct |
7 ms |
1116 KB |
Output is correct |
25 |
Correct |
7 ms |
1112 KB |
Output is correct |
26 |
Correct |
7 ms |
968 KB |
Output is correct |
27 |
Correct |
7 ms |
1112 KB |
Output is correct |
28 |
Correct |
7 ms |
1112 KB |
Output is correct |
29 |
Correct |
8 ms |
1112 KB |
Output is correct |
30 |
Correct |
7 ms |
1112 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 |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 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 |
392 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
356 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
356 KB |
Output is correct |
21 |
Correct |
0 ms |
356 KB |
Output is correct |
22 |
Correct |
0 ms |
356 KB |
Output is correct |
23 |
Correct |
0 ms |
360 KB |
Output is correct |
24 |
Correct |
0 ms |
360 KB |
Output is correct |
25 |
Correct |
0 ms |
360 KB |
Output is correct |
26 |
Correct |
0 ms |
360 KB |
Output is correct |
27 |
Correct |
0 ms |
360 KB |
Output is correct |
28 |
Correct |
0 ms |
360 KB |
Output is correct |
29 |
Correct |
0 ms |
360 KB |
Output is correct |
30 |
Correct |
0 ms |
356 KB |
Output is correct |
31 |
Correct |
7 ms |
996 KB |
Output is correct |
32 |
Correct |
7 ms |
1128 KB |
Output is correct |
33 |
Correct |
7 ms |
1128 KB |
Output is correct |
34 |
Correct |
8 ms |
1128 KB |
Output is correct |
35 |
Correct |
7 ms |
1116 KB |
Output is correct |
36 |
Correct |
6 ms |
1116 KB |
Output is correct |
37 |
Correct |
8 ms |
1100 KB |
Output is correct |
38 |
Correct |
6 ms |
1060 KB |
Output is correct |
39 |
Correct |
7 ms |
1116 KB |
Output is correct |
40 |
Correct |
7 ms |
1112 KB |
Output is correct |
41 |
Correct |
7 ms |
968 KB |
Output is correct |
42 |
Correct |
7 ms |
1112 KB |
Output is correct |
43 |
Correct |
7 ms |
1112 KB |
Output is correct |
44 |
Correct |
8 ms |
1112 KB |
Output is correct |
45 |
Correct |
7 ms |
1112 KB |
Output is correct |
46 |
Correct |
9 ms |
1116 KB |
Output is correct |
47 |
Correct |
8 ms |
1116 KB |
Output is correct |
48 |
Correct |
8 ms |
1116 KB |
Output is correct |
49 |
Correct |
8 ms |
1340 KB |
Output is correct |
50 |
Correct |
7 ms |
1116 KB |
Output is correct |
51 |
Correct |
8 ms |
1264 KB |
Output is correct |
52 |
Correct |
8 ms |
1116 KB |
Output is correct |
53 |
Correct |
8 ms |
1328 KB |
Output is correct |
54 |
Correct |
8 ms |
1116 KB |
Output is correct |
55 |
Correct |
7 ms |
1116 KB |
Output is correct |
56 |
Correct |
8 ms |
1112 KB |
Output is correct |
57 |
Correct |
8 ms |
1112 KB |
Output is correct |
58 |
Correct |
8 ms |
1116 KB |
Output is correct |
59 |
Correct |
8 ms |
1116 KB |
Output is correct |
60 |
Correct |
8 ms |
1340 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 |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 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 |
392 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
356 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
356 KB |
Output is correct |
21 |
Correct |
0 ms |
356 KB |
Output is correct |
22 |
Correct |
0 ms |
356 KB |
Output is correct |
23 |
Correct |
0 ms |
360 KB |
Output is correct |
24 |
Correct |
0 ms |
360 KB |
Output is correct |
25 |
Correct |
0 ms |
360 KB |
Output is correct |
26 |
Correct |
0 ms |
360 KB |
Output is correct |
27 |
Correct |
0 ms |
360 KB |
Output is correct |
28 |
Correct |
0 ms |
360 KB |
Output is correct |
29 |
Correct |
0 ms |
360 KB |
Output is correct |
30 |
Correct |
0 ms |
356 KB |
Output is correct |
31 |
Correct |
4 ms |
4596 KB |
Output is correct |
32 |
Correct |
4 ms |
4596 KB |
Output is correct |
33 |
Correct |
4 ms |
4512 KB |
Output is correct |
34 |
Correct |
5 ms |
4456 KB |
Output is correct |
35 |
Correct |
4 ms |
4412 KB |
Output is correct |
36 |
Correct |
4 ms |
4848 KB |
Output is correct |
37 |
Correct |
4 ms |
4804 KB |
Output is correct |
38 |
Correct |
5 ms |
4444 KB |
Output is correct |
39 |
Correct |
4 ms |
4856 KB |
Output is correct |
40 |
Correct |
4 ms |
4856 KB |
Output is correct |
41 |
Correct |
5 ms |
4516 KB |
Output is correct |
42 |
Correct |
4 ms |
4476 KB |
Output is correct |
43 |
Correct |
5 ms |
4868 KB |
Output is correct |
44 |
Correct |
5 ms |
4532 KB |
Output is correct |
45 |
Correct |
5 ms |
4612 KB |
Output is correct |
46 |
Correct |
7 ms |
996 KB |
Output is correct |
47 |
Correct |
7 ms |
1128 KB |
Output is correct |
48 |
Correct |
7 ms |
1128 KB |
Output is correct |
49 |
Correct |
8 ms |
1128 KB |
Output is correct |
50 |
Correct |
7 ms |
1116 KB |
Output is correct |
51 |
Correct |
6 ms |
1116 KB |
Output is correct |
52 |
Correct |
8 ms |
1100 KB |
Output is correct |
53 |
Correct |
6 ms |
1060 KB |
Output is correct |
54 |
Correct |
7 ms |
1116 KB |
Output is correct |
55 |
Correct |
7 ms |
1112 KB |
Output is correct |
56 |
Correct |
7 ms |
968 KB |
Output is correct |
57 |
Correct |
7 ms |
1112 KB |
Output is correct |
58 |
Correct |
7 ms |
1112 KB |
Output is correct |
59 |
Correct |
8 ms |
1112 KB |
Output is correct |
60 |
Correct |
7 ms |
1112 KB |
Output is correct |
61 |
Correct |
9 ms |
1116 KB |
Output is correct |
62 |
Correct |
8 ms |
1116 KB |
Output is correct |
63 |
Correct |
8 ms |
1116 KB |
Output is correct |
64 |
Correct |
8 ms |
1340 KB |
Output is correct |
65 |
Correct |
7 ms |
1116 KB |
Output is correct |
66 |
Correct |
8 ms |
1264 KB |
Output is correct |
67 |
Correct |
8 ms |
1116 KB |
Output is correct |
68 |
Correct |
8 ms |
1328 KB |
Output is correct |
69 |
Correct |
8 ms |
1116 KB |
Output is correct |
70 |
Correct |
7 ms |
1116 KB |
Output is correct |
71 |
Correct |
8 ms |
1112 KB |
Output is correct |
72 |
Correct |
8 ms |
1112 KB |
Output is correct |
73 |
Correct |
8 ms |
1116 KB |
Output is correct |
74 |
Correct |
8 ms |
1116 KB |
Output is correct |
75 |
Correct |
8 ms |
1340 KB |
Output is correct |
76 |
Correct |
98 ms |
16048 KB |
Output is correct |
77 |
Correct |
115 ms |
16348 KB |
Output is correct |
78 |
Correct |
107 ms |
16036 KB |
Output is correct |
79 |
Correct |
104 ms |
16004 KB |
Output is correct |
80 |
Correct |
107 ms |
16028 KB |
Output is correct |
81 |
Correct |
105 ms |
16000 KB |
Output is correct |
82 |
Correct |
105 ms |
16020 KB |
Output is correct |
83 |
Correct |
103 ms |
16004 KB |
Output is correct |
84 |
Correct |
100 ms |
16004 KB |
Output is correct |
85 |
Correct |
103 ms |
15996 KB |
Output is correct |
86 |
Correct |
99 ms |
16360 KB |
Output is correct |
87 |
Correct |
107 ms |
16352 KB |
Output is correct |
88 |
Correct |
102 ms |
16360 KB |
Output is correct |
89 |
Correct |
100 ms |
16004 KB |
Output is correct |
90 |
Correct |
99 ms |
16352 KB |
Output is correct |