Set 4 (Infosys 3Pm)

#include<bits/stdc++.h>
using namespace std;
vector<pair<int,int>>adj[1000001];

int main(){
int n;
cin>>n;
unordered_map<int,int>mp;
for(int i=0;i<n;++i){
int x;
cin>>x;
mp[x]=INT_MAX;
}
int e;
cin>>e;
for(int i=0;i<e;++i){
int x,y,d;
cin>>x>>y>>d;
adj[x].push_back({y,d});
}
int src,dest;
cin>>src>>dest;
set<pair<int,int>>s;
mp[src]=0;
s.insert({0,src});
while(!s.empty()){
pair<int,int>tmp=*(s.begin());
s.erase(s.begin());
int u=tmp.second;
for(auto i=adj[u].begin();i!=adj[u].end();++i){
int v=(*i).first;
int weight=(*i).second;
if(mp[v]>mp[u]+weight){
if(mp[v]!=INT_MAX)
s.erase(s.find({mp[v],v}));
mp[v]=mp[u]+weight;
s.insert({mp[v],v});
}
}
}
if(mp[dest]==INT_MAX)
cout<<"-1"<<endl;
else
cout<<mp[dest]<<endl;
return 0;
}

Juspay (C++)✅

#include<bits/stdc++.h>
using namespace std;
vector<int>adj[1000001];
void solve(int src,int dest,unordered_map<int,int>&mp){
mp[src]=1;
for(int i=0;i<adj[src].size();++i){
if(!mp[adj[src][i]]){
solve(adj[src][i],dest,mp);
}
}
}

int main(){
int n;
cin>>n;
unordered_map<int,int>mp;
for(int i=0;i<n;++i){
int x;
cin>>x;
mp[x]=0;
}
int e;
cin>>e;

for(int i=0;i<e;++i){
int x,y;
cin>>x>>y;
adj[x].push_back(y);
}
int src,dest;
cin>>src>>dest;
solve(src,dest,mp);
cout<<mp[dest]<<endl;
return 0;
}

Juspay (C++)✅

void rearrange(int arr[], int n)
{
int temp[n];
int small = 0, large = n - 1;n
int flag = true;
for (int i = 0; i < n; i++) {
if (flag)
temp[i] = arr[large--];
else
temp[i] = arr[small++];

flag = !flag;
}
for (int i = 0; i < n; i++)
arr[i] = temp[i];
}

Alternate Prefix Sums ✅

TCS IRA answers...
Java answers

26)7.25
27)3rd option
28)55
29)the output will be 4 3 undefined 1
30)124
31)it will be concatenate both the strings and print as 1 ,2 ,3 ,4 ,5 ,6 ,7 ,8 ,9,10
32)//
33)object
34)<img src="jtp.png">
35)u
36)Grade:C
37)10 11 Aman
38)a=22.5,b=21.0
39)5070
40)2345
41)Learning Java Learning Java
42)6.3
43)6789
41) Learning Java learning Java
42) 6,3
43)6789
44) class MyClass
45)56 1
46) exdends
47) javt
48) public static int cal(a,name)
49) composition
50) math()

TCS IRA JAVA ANSWERS

1)Robotic
2)true
3)native application
4)big data

Unix:


awk 'BEGIN{FS=";"; count=0;}
{if($3>=55 && $4>=55 && $5>=55){
count++;
total=$3+$4+$5;
print $2","$3","$4","$5","total;
}
}
END{if(count==0) print "No Student found"}'