Problem
An RNA string is a string formed from the alphabet containing ‘A’, ‘C’, ‘G’, and ‘U’.
Given a DNA string t corresponding to a coding strand, its transcribed RNA string u is formed by replacing all occurrences of ‘T’ in t with ‘U’ in u.
Given: A DNA string t having length at most 1000 nt.
Return: The transcribed RNA string of t.
Sample Dataset
GATGGAACTTGACTACGTAAATT
Sample Output
GAUGGAACUUGACUACGUAAAUU
Solution
这道题是翻译，只要把T替换成U就可以了。和上一道题《s01 - Counting DNA Nucleotides》差不多难度。
C version
#include <stdio.h>
int main() {
FILE *INFILE;
INFILE = fopen("DATA/rosalind_rna.txt", "rt");
char nt;
while( (nt = fgetc(INFILE)) != EOF) {
if (nt == 'T') {
nt = 'U';
}
printf("%c", nt);
}
return 0;
}
Python version
FILE=open("DATA/rosalind_rna.txt", "r")
dna=FILE.read()
FILE.close()
rna = dna.replace('T', 'U')
print(rna)