what does map.count() return in c++

Kind Kangaroo answered on June 8, 2020 Popularity 10/10 Helpfulness 1/10

answer what does map.count() return in c++

related map count function c++

what does map.count() return in c++

Comment

int n; cin>>n;
long val;
map<int,long> mp3;
long long res=0;
while(n--){
	cin>>val;
	if(mp3.count(val)) 	res+=mp3[val]; 
    //mp3.count(val) returns 1 if val is present in the map already or 
    //the number of times the key K is present in the map container.
    if(mp2.count(val)) 	mp3[val*r]+=mp2[val];
	mp2[val*r]++;
}
cout<<res<<endl;

Popularity 10/10 Helpfulness 1/10 Language cpp

Source: Grepper

Tags: c++ return

Link to this answer
Share Copy Link

Contributed on Jun 08 2020

Kind Kangaroo

0 Answers Avg Quality 2/10

Closely Related Answers

map count function c++

Comment

map_name.count(key k)
/*
   Parameters: k which specifies the key to be searched in the map container.
   Return Value: returns the number of times the key K is present in the map container. 
   		  "RETURNS 0"- if the key is not present in the map container.
*/

Popularity 10/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

Link to this answer
Share Copy Link

Contributed on Jul 16 2021

Wide-eyed Weevil

0 Answers Avg Quality 2/10

Continue with Google

By continuing, I agree that I have read and agree to Greppers's Terms of Service and Privacy Policy.

what does map.count() return in c++

Contents

More Related Answers