The pseudo-code below describes the map and reduce functions of a word count job. Describe in your own words the execution of the program and the purpose of each instruction. (reminder: pseudo- code is an informal high-level description of the logic and behaviour of a program. It is not a programming language) Algorithm 1 map(String key, String value) for all word w in value do Emit(W, 1) end for Algorithm 2 reduce(String key, Iterator values) int res = 0; for all int v in values do res += V; end for Emit(key, res) The pseudo-code below describes the map and reduce functions of a word count job. Describe in your own words the execution of the program and the purpose of each instruction. (reminder: pseudo- code is an informal high-level description of the logic and behaviour of a program. It is not a programming language) Algorithm 1 map(String key, String value) for all word w in value do Emit(W, 1) end for Algorithm 2 reduce(String key, Iterator values) int res = 0; for all int v in values do res += V; end for Emit(key, res)