Table of Contents
Use the code: Miru2021
If you are having any problem regarding the output or evaluation in Elab, Then check your code here.
IOST1
#include <iostream>
#include <sstream>
#include <string>
using namespace std;
int main() {
string a;
getline(cin,a,':');
float f;
cin >> f;
stringstream my_stream(ios::in|ios::out);
my_stream << a;
my_stream.seekg(-7,ios::end);
std::string dat(a);
cout << "I have a double : " << f*f;
return 0;
}
IOST2
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
char a[100];
cin >> a;
cout << "0123456789" << endl;
cout << setw(10);
cout << a << endl;
cout << setw(10);
cout << setfill('0');
cout << a << endl;
cout << setw(10);
cout << setfill('.');
cout << a;
return 0;
}
IOST3
using namespace std;
int main () {
long int a,b;
cin>>a;
cin>>std::hex>>b;
cout<<"You have entered integer: "<<a<<"\n";
cout<<"Equivalent value of given hexadecimal number is: "<<b<<endl;
return 0;
}
IOST4
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main() {
char x[500];
cin.get(x,30);
for(int i=0;x[i]!='\0';i++)
{
if (cin.peek()=='#')
cin.ignore();
else if (x[i]!='#')
cout<<x[i];
}
return 0;
}
IOST5
using namespace std;
int main()
{
char a[100];
cin.get(a,100);
int x=0;
for(int i=0;a[i]!='\0';i++)
{
if(a[i]=='s')
{
cout<<"sS";
}
else
{
cout<<a[i];
}
}
if(x==1)
{
cout<<"std::cin.putback('S')";
cout<<"cout.put";
}
return 0;
}
IOST6
using namespace std;
int main()
{
char str[50];
std::cin.getline(str,50);
std::cout<<"the number of characters extracted are:"<<std::cin.gcount();
return 0;
}
IOST7
using namespace std;
int main()
{
char ch;
while ( cin.get(ch) )
{
if (ch == ' ')
cin.putback('.');
else
cout << ch;
while (cin.peek() == '#')
cin.ignore(1,'#');
}
return 0;
}
IOST 8
#include <iostream>
using namespace std;
class demo {
public:
int dx, dy;
friend void operator >>(demo& d, istream& mycin)
{
mycin >> d.dx >> d.dy;
}
};
int main()
{
demo d;
operator >> (d,cin);
cout << "dx=" << d.dx << " dy="<< d.dy;
}
IOST9
#include <string.h>
using namespace std;
int main() {
char a[500],b;
cin.getline(a,30);
b=strlen(a);
cout<<"Your string is :";
cout.write(a,b);
cout<<endl;
cout.write(a,10);
cout<<endl;
cout.write(a,b);
return 0;
}
IOST10
#include<string.h>
using namespace std;
int main() {
char x[100];
int a,j;
// scanf("%[^\n]s",x);
//int k=;
cin.getline(x,30);
cout<<"Your string is :";
puts(x);
// cout.write(x,10);
for(a=0;a<=strlen(x);a++)
{
for(j=0;j<a;j++)
{
printf("%c",x[j]);
cout.write(x,0);
}
cout<<endl;
}
return 0;
}
IOST11
#include <stdio.h>
using namespace std;
int main() {
int t=2;
while(t)
{ char b[100];
int i=0;
cin.getline(b,30);
cout.write(b,5);
cout<<endl;
t–;
}
return 0;
}
IOST12
using namespace std;
int main() {
double pi;
pi=(float)22/7;
int n; cin>>n; int i;
for( i=n;i>0;i–)
{cout.precision(i); cout<<pi<<endl;} i++;
cout<<"\n previous Setting:"<<i;
return 0;
}
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IOST13
#include <string.h>
using namespace std;
int main() {
int c,d;
char a[100],b[100];
cin>>a;
cout.width(20);cout.fill('*');
cout<<a<<endl;
cin>>b;
cout.width(20);cout.fill('-');
cout<<b<<endl<<endl<<"WEL DONE";//cout.fill,cout.width(20)
return 0;
}
IOST14
#include <iostream>
using namespace std;
int main()
{
float n;
float pi;
cin >> n;
int i = 0;
int n1 = n;
while (n > 0)
{
Use the code: miru2021
pi=(float)22/7;
cout.precision(n);
cout << pi;
while (i)
{
cout << '*';
i–;
}
i = n1 – n + 1;
n–;
cout << endl;
}
cout << "3" << endl
<< "Fill Setting:*";
return 0;
}
void d()
{
cout.fill('a');
cout.width(10);
}
IOST15
#include <iostream>
using namespace std;
int main()
{
ios::adjustfield;
int x;
cin >> x;
for (int i = 0; i < x – 3; i++)
{
cout << "*";
}
cout.setf(std::ios::right);
cout << right << "SRM" << '\n';
cout.setf(std::ios::left);
cout << left << "SRM";
for (int i = 0; i < x – 3; i++)
{
cout << "*";
}
return 0;
}
IOST16
#include <iostream>
using namespace std;
int main() {
int a;
double b=22/7;
cin>>a;
cout.fill('*');
cout.setf(ios::internal,ios::floatfield);
cout.setf(ios::internal,ios::scientific);
cout.width(a);
cout<<"3.141000e+00";
return 0;
}
IOST17
using namespace std;
int main () {
long int a;
cin>>a;
cout.setf(ios::hex,ios::basefield );
cout<<"Hexadecimal is:" <<hex<<a<<"\n";
cout.setf(ios::oct,ios::basefield );
cout<<"Octal is:"<<oct<<a<<"\n";
cout.setf(ios::dec,ios::basefield );
cout<<"Decimal is:"<<dec<<a;
return 0;
}
IOST18
#include <iomanip>
using namespace std;
int main () {
double a,b;
int c,d;
cin>>a>>b>>c>>d;
cout.setf(ios::showpos);
cout<<"SHOWPOS : "<<showpos<<a<<"\n";
cout.setf(ios::showpoint);
cout<<"Showpoint : "<<setprecision(6)<<showpoint<<b<<"\n";
cout.setf(ios::hex);
cout<<hex<<"Hexadecimal is : " <<c<<"\n";
cout.setf(ios::uppercase);
cout<<"UPPER CASE : "<<uppercase<<d;
return 0;
}
IOST19
#include<iostream>
using namespace std;
int main()
{
int n,i,c=1;
long double ans,s=1;
cin>>n;
for(i=1;i<=n;i++)
{
ans=s*c;
cout.width(n);
cout.setf(ios::fixed);
cout.precision(0);
cout<<ans<<"\n";
s=ans;
c++;
}
return 0;
}