Count Log Levels

Programs write log files with one event per line. Each line starts with a level word followed by a space and a message, for example ERROR disk full.

Given the lines of a log file, count the lines whose first word is exactly INFO, WARNING or ERROR. Lines that start with anything else (including lowercase levels) are ignored.

Implement count_log_levels(lines).

Input

lines: The lines of the file, without line breaks.

Output

Return [info_count, warning_count, error_count].

Restricciones

0 ≤ number of lines ≤ 10,000

Each line has at most 200 characters

Ejemplos

Entrada:
lines = ["INFO server started", "ERROR disk full", "INFO user login", "WARNING slow query"]

Salida esperada:
expected = [2, 1, 1]

Entrada:
std::vector<std::string> lines = {"INFO server started", "ERROR disk full", "INFO user login", "WARNING slow query"};

Salida esperada:
std::vector<long long> expected = {2, 1, 1};

Entrada:
string[] lines = new string[] {"INFO server started", "ERROR disk full", "INFO user login", "WARNING slow query"};

Salida esperada:
long[] expected = new long[] {2, 1, 1};

Entrada:
lines = ["info lowercase", "DEBUG details", "ERROR"]

Salida esperada:
expected = [0, 0, 1]

Entrada:
std::vector<std::string> lines = {"info lowercase", "DEBUG details", "ERROR"};

Salida esperada:
std::vector<long long> expected = {0, 0, 1};

Entrada:
string[] lines = new string[] {"info lowercase", "DEBUG details", "ERROR"};

Salida esperada:
long[] expected = new long[] {0, 0, 1};

Referencias

Este reto está adaptado para CodeUtility. Sigue el enunciado y las restricciones indicadas arriba.

• Python docs, Reading and Writing Files