Keyword Analysis & Research: what is the use of using namespace std in c

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the use of using namespace std in c	0.05	1	6535	82	45
what	0.27	0.4	9984	14	4
is	0.54	0.5	4564	73	2
the	0.52	0.2	9632	41	3
use	1.24	0.3	5393	39	3
of	1.42	0.4	2684	6	2
using	0.09	1	3124	3	5
namespace	0.86	0.5	2919	8	9
std	1.79	1	4325	71	3
in	0.06	0.3	7096	95	2
c	0.6	0.6	8270	53	1

Keyword	CPC	PCC	Volume	Score
what is the use of using namespace std in c	1.58	0.5	1526	59