class KthLargest { public: int K; vector<int> v; KthLargest(int k, vector<int>& nums) { v=nums; K=k; make_heap(v.begin(), v.end()); } int add(int val) { v.push_back(val); push_heap(v.begin(), v.end()); return v[K-1]; } }; /** * Your KthLargest object will be instantiated and called as such: * KthLargest* obj = new KthLargest(k, nums); * int param_1 = obj->add(val); */

Which type of program ??

i wonder if anyone uses apache arrow in c++, i cant find a easy-to-understand tutorial on how to use it.

What language is use to program websites and it pages

Hi guys I want a course of c++ and thinks

#include <cstdlib> #include <ctime> #include <iostream> #include <vector> #include <random> using namespace std; void intro(); int main() { intro(); vector<int> vect; vector<int> nonRepeat; int size; int num; int min = 1, max = 10; cout << "\t\tEnter the size of the vector: "; cin >> size; cout << endl; srand(time(0)); while (vect.size() < size) { num = (rand() % (max - min + 1)) + min; vect.push_back(num); for (size_t i = 0; i < vect.size() - 1; i++) { if (vect[i] == num) { vect.pop_back(); break; } } } cout << "\t\tHere are the numbers\n"; cout << endl; for (int count = 0; count < size; count++) { cout << "\t\tNum #" << count + 1 << " = " << vect[count] << endl; } return 0; } void intro() { cout << "\t\tThis is a c++ program\n"; cout << "\t\t----------------------------\n"; cout << endl; }

Hi guys, so when using WSL in order to take strings for a C program, I noticed that if I write something that has spaces, like "hello how are you", when I am back in the C program, I find out that argc is not 2 as I expected, but 6! which means, each word of the string has been taken as a string, and therefore I have argv [1]== "hello", argv[2]== "I", and so forth. Is there a way to fix this? Thank you very much!

Any bady Indian 😄

there is no way to fix this as this is the expected behaviour, your shell splits arguments by whitespaces. If you want your shell to take an argument with space in it either you have to escape the space with \ or you need to put it inside single or double quotation marks like this first second third

Hello, I'm writing a chess programm on C# WPF. Can anyone help me to move the knight figure in allowed steps?

https://www.chessprogramming.org/Main_Page

#include <stdio.h> #include <string.h> struct student { int id; char name[30]; float percentage; }; int main() { int i; struct student record1 = {1, "Raju", 90.5}; struct student record2, *record3 = NULL, *ptr1, record4; printf("Records of STUDENT1 - record1 structure \n"); printf(" Id : %d \n Name : %s\n Percentage : %f\n", record1.id, record1.name, record1.percentage); // 1st method to copy whole structure to another structure record2=record1; printf("\nRecords of STUDENT1 - Direct copy from \n record1 \n"); printf(" Id : %d \n Name : %s\n Percentage : %f\n", record2.id, record2.name, record2.percentage); // 2nd method to copy using memcpy function ptr1 = &record1; memcpy(record3, ptr1, sizeof(record1)); printf("\nRecords of STUDENT1 - copied from record1 " \ "using memcpy \n"); printf(" Id : %d \n Name : %s\n Percentage : %f\n", record3->id, record3->name, record3->percentage); // 3rd method to copy by individual members printf("\nRecords of STUDENT1 - Copied individual " \ "members from record1 \n"); record4.id=record1.id; strcpy(record4.name, record1.name); record4.percentage = record1.percentage; printf(" Id : %d \n Name : %s\n Percentage : %f\n", record4.id, record4.name, record4.percentage); return 0; }

record3 is a null pointer, copying to null pointer does not make any sense Please change that to this one ptr1 = &record1; record3 = &record2; memcpy(record3, ptr1, sizeof(record1));

How Write 2 different problems where they require different data structure to be efficiently solved ???

Union and struct are very similar except the way memory location is stored. So far I have only use struct. Is there a situation where union is preferred or better? Anyone has any experience to share?

Hi guys, so I am studying Operating Systems writing code in C. My professor explained us that, if I want a process to run something, I have to use the execlp instruction. That's fine, but this only works in UNIX environment, do you have any suggestion for Windows? I am basically writing two C programs, the former creating N processes that take directories paths via argv, creating N processes that, at the end, must use the /s command. So, I don't know how to do it, any suggestion?

I don't really develop for windows but... Guessing by https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/execlp?view=msvc-170

#include <iostream> #include<conio.h> #include<math.h> using namespace std; class A { int a, b, s, c, area; public: void triangle () { cout << "Enter sides of triangle"; cin >> a >> b >> c; s = (a + b + c) / 2; area = sqrt (s * (s - a) * (s - b) * (s - c)); cout << "Area of triangle" << area; } }; void main() { clrscr (); A obj; obj.triangle (); getch (); }

Hey, how to start a application with c++ to store/save any file, similar to drop box. I want to build this project to learn c++

#include <iostream> #include<conio.h> #include<math.h> using namespace std; class A { int a, b, s, c, area; public: void triangle () { cout << "Enter sides of triangle"; cin >> a >> b >> c; s = (a + b + c) / 2; area = sqrt (s * (s - a) * (s - b) * (s - c)); cout << "Area of triangle" << area; } }; void main() { clrscr (); A obj; obj.triangle (); getch (); }

What error are you getting?

#include <iostream> #include<conio.h> #include<math.h> using namespace std; class A { int a, b, s, c, area; public: void triangle () { cout << "Enter sides of triangle"; cin >> a >> b >> c; s = (a + b + c) / 2; area = sqrt (s * (s - a) * (s - b) * (s - c)); cout << "Area of triangle" << area; } }; void main() { clrscr (); A obj; obj.triangle (); getch (); }

#include <stdio.h> #include <stdlib.h> int main() { int i, j, lines, columns, *intMatrix; printf("Type the matrix lines:\t"); scanf("%d", &lines); printf("Type the matrix columns:\t"); scanf("%d", &columns); intMatrix = (int *)malloc(lines * columns * sizeof(int)); for (i = 0; i < lines; ++i) { for (j = 0; j < columns; ++j) { printf("Type a number for <line: %d, column: %d>\t", i+1, j+1); scanf("%d", &intMatrix[i*lines + j]); } } for (i = 0; i < lines; ++i) { for (j = 0; j < columns; ++j) { printf("%d\t", intMatrix[i * columns + j]); } printf("\n"); } int *mas; for(int i=0;i<lines;++i) { float dobutok=1; for(int j=0;j<columns;++j) { dobutok=dobutok*intMatrix[j * lines + i]; } mas[i*lines + j]=dobutok; printf("%d\t",mas[i*lines + j]); } int *Matrix2; Matrix2 = (int *)malloc(lines+1 * columns * sizeof(int)); for(i=0; i<lines+1;++i){ for(j=0; j<columns; ++j){ Matrix2[i*lines + j]=mas[i*lines + j]; } } for(j=0; j<columns;++j){ for(i=0; i<lines+1; ++i){ Matrix2[i*lines + j]=intMatrix[i*lines + j]; } } for (i = 0; i < lines+1; ++i) { for (j = 0; j < columns; ++j) { printf("%d\t", Matrix2[i * columns + j]); } printf("\n"); } return 0; }

Maybe someone knows why it fills the array with incomprehensible zeros. Because it multiplies correctly and as soon as I want to change something in the output it no longer works https://www.onlinegdb.com/kz0AX1yCK

Is it really that important?

I meant how does it even help?

Hi to all! I really need a hint. Please tell me, is there a way for C to sort columns according to their sum? I will be very grateful for any help

since C is turing complete -> yes

Maybe you have such an algorithm or at least a link to something like that? I've just been sitting on this task for a long time and I can't find anything like it

#include <iostream> using namespace std; class overloading { public: int x; void ip() { cout << "Enter Num : "; cin >> x; } friend int operator+(overloading &ob1, overloading &ob2) { return ob1.x + ob2.x; } friend int operator*(overloading &ob3, overloading &ob4) { return ob3.x * ob4.x; } friend int operator++(overloading &ob5) { return ++ob5.x; } friend int operator-(overloading &ob6, overloading &ob7) { return ob6.x - ob7.x; } void operator=(int a) { x = a; } }; int main() { overloading O1, O2, O3, O4, O5, O6; O1.ip(); O2.ip(); O3.ip(); O4.ip(); O5.ip(); O6 = ((O1 + O2) - (O3 * O4) * (++O5)); cout<<"Result : "<<O6.x; return 0; }

#include <iostream> using namespace std; void intro(); class TestScore { public: TestScore(double array[], int size) { { double total; for(int count = 0; count < size; count++) { total += array[count]; average = total / size; } } } double getTotal() {return total;} double getAverage() {return average;} protected: private: double average; double total; }; int main() { intro(); int size; cout<<"Enter the size of the array: "; cin>>size; cout<<endl; double array[size]; for(int count = 0; count < size; count++) { cout<<"Enter score #"<<count + 1<<": "; while(!(cin>>array[count]) || array[count] < 0) { cout<<array[count]<<" is a negative figure\n"; cout<<"Enter a valid figure: "; cin.clear(); cin.ignore(100, '\n'); } } TestScore test(array, size); cout<<"The average is: "<<test.getAverage()<<endl; return 0; } void intro() { cout<<"\t\tThis is a test score class program in C++\n"; cout<<"\t\t---------------------------------------------\n"; cout<<endl; }