#include <iostream> using namespace std; int main() { int amount, deno = 0; cout << "Enter the Total Amount: "; cin >> amount; int count100 = 0, count50 = 0, count20 = 0, count10 = 0; if(amount >= 100){ deno = 100; } else if(amount >= 50){ deno = 50; } else if(amount >= 20){ deno = 20; } else if(amount >= 10){ deno = 10; } switch(deno) { case 100 : count100 = amount / 100; amount %= 100; case 50 : count50 = amount / 50; amount %= 50; case 20 : count20 = amount / 20; amount %= 20; case 10 : count10 = amount / 10; amount %= 10; } cout << "No. of 100 notes: " << count100 << endl; cout << "No. of 50 notes: " << count50 << endl; cout << "No. of 20 notes: " << count20 << endl; cout << "No. of 10 notes: " << count10 << endl; return 0; }
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OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
#include <iostream>
#include <string>
using namespace std;
int main()
{
string name;
cout << "Enter name:";
getline (cin, name);
cout << "Hello " << name;
return 0;
}
C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
//code
}
else {
//code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression){
case value1:
// code
break; // optional
case value2:
// code
break; // optional
......
default:
code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
//code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while (condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}