// Se dă o matrice cu n linii şi m coloane, în care liniile sunt sortate lexicografic crescător. 
// Se dau q întrebări de forma: este şirul A, cu m elemente, o linie a matricei citite?
// Date de intrare

// Pe prima linie se vor afla numerele n şi m. Pe următoarele n linii se vor afla câte m numere naturale, reprezentând elementele matricei. 
// Pe linia următoare se va afla numărul q, iar pe următoarele q linii se vor afla câte m numere reprezentând şirurile cărora trebuie să le 
// determinăm prezenţa în matricea dată.
// Date de ieşire

// Pe ecran se vor afişa q mesaje, fiecare pe câte o linie, reprezentând răspunsurile la întrebări. 
// Dacă şirul citit la întrebarea i se află în matrice, atunci se va afişa "DA". În caz contrar, se va afişa "NU".


/* Pasi de rezolvare:

0. Citim N M
1. citim elementele matricei
2. citim numarul Q
3. Citim elementele a Q siruri
4. ***** ce am citit prima linie q, parcurg intreaga matrice
5. Verific daca toate elementele de pe linia q[i] sunt egale cu elementele de pe cel putin una din liniile matricei. 
*/

#include <iostream>
using namespace std;

int main() {
    int const DIM = 1001;
    int n, m, q, mt[DIM][DIM], array_q[1002002];
    cin >> n >> m;
    for (int i = 1; i <= n; ++i) {
        for (int j = 1; j <= m; ++j) {
            cin >> mt[i][j];
        }
    }
    cin >> q;
    for (int i = 1; i <= q; ++i) {
        for (int j = 1; j <= m; ++j) {
            cin >> array_q[j];
        }
        for (int i1 = 1; i1 <= n; ++i1) {
            bool flag = true;
            for (int j1 = 1; j1 <= m; ++j1) {
                if (mt[i1][j1] != array_q[j1]) {
                    flag = false;
                }
            }
            if (flag) {
                //if (flag) {
                    cout << "DA" << "\n";
                    break;
                } else {
                    cout << "NU" << "\n";
                    break;
                }
            //} 
        }
    }
    return 0;
}

C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

Read inputs from stdin

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;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

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.

2. Switch:

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;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
}

4. While:

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 
}

5. Do-While:

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);

Functions

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.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}