What is the time, space complexity of following code: int a = 0, b = 0; for (i = 0; i < N; i++) { a = a + rand(); } for (j = 0; j < M; j++) { b = b + rand(); }   Select one: a. O(N * M) time, O(1) space b. O(N + M) time, O(1) space c. O(N + M) time, O(N + M) space d. O(N * M) time, O(N + M) space

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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What is the time, space complexity of following code:
int a = 0, b = 0;
for (i = 0; i < N; i++) {
a = a + rand();
}
for (j = 0; j < M; j++) {
b = b + rand();
}

 

Select one:
a. O(N * M) time, O(1) space
b. O(N + M) time, O(1) space
c. O(N + M) time, O(N + M) space
d. O(N * M) time, O(N + M) space
 
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