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Replace Digits SOLUTION
Problem Statement
You have a string S of length N. Initially, all characters in S are 1s.You will perform queries
Q times. In the i-th query, you are given two integers Li,Ri and a character Di (which is a digit). Then, you must replace all characters from the Li-th to the Ri-th (inclusive) with
Di.After each query, read the string S as a decimal integer, and print its value modulo
998,244,353.
Constraints
1
≤
N
,
Q
≤
200
,
000
1
≤
L
i
≤
R
i
≤
N
1
≤
D
i
≤
9
All values in input are integers.
Input
Input is given from Standard Input in the following format:
N
Q
L
1
R
1
D
1
:
L
Q
R
Q
D
Q
Output
Q
lines. In the
i
-th line print the value of
S
after the
i
-th query, modulo
998
,
244
,
353
.
Sample Input 1
Copy
8 5
3 6 2
1 4 7
3 8 3
2 2 2
4 5 1
Sample Output 1
Copy
11222211
77772211
77333333
72333333
72311333
Sample Input 2
Copy
200000 1
123 456 7
Sample Output 2
Copy
641437905
Don’t forget to take the modulo.
