i have to write a program which read from the keyboard a line of numbers and save them into an array, numbers have to be written just in a line, i wrote this but doesn`t work because of an infinite loop, any suggestion?
int main() {
int numCasos = 0, contNumCasos = 0, numElem = 0;
string aux;
cout << "Number of cases: " << endl;
cin >> numCasos;
while (contNumCasos < numCasos) {
cout << "Number of elements: " << endl;
cin >> numElem;
cout << "Enter the Elements separated by space: " << endl;
cin.ignore();
vector.cont = 0;
int i = 0;
while ((vector.cont < numElem) && getline(cin,aux,' ')){
vector.v[i] = stoi(aux);
vector.cont++;
i++;
}
}
cout << sumaBuenos(vector) << endl;
cin.ignore();
system("pause");
return 0;
}
An example:
console : Number of elements:
user : 4
console : Enter the Elements separated by space:
user : 2 43 65 56
--this has to be the vector
-- vector.v[0] = 2
-- vector.v[1] = 43
-- vector.v[2] = 65
-- vector.v[3] = 56
if you know how many numbers you have to read there is a simpler way:
int n;
cin>>n; // how many numbers;
vector<int> v(n);
for ( int i=0; i<n; ++i ){
cin>>v[i];
}
With a modification it works.
int main() {
int numCasos = 0, contNumCasos = 0, numElem = 0;
string aux;
cout << "Numero de casos: " << endl;
cin >> numCasos;
while (contNumCasos < numCasos) {
cout << "Numero de elementos: " << endl;
cin >> numElem;
cout << "Ingrese los elementos separados por espacios: " << endl;
cin.ignore();
vector.cont = 0;
getline(cin, aux);
istringstream iss(aux);
for (int i = 0;i < numElem;i++) {
iss >> aux;
vector.v[i] = stoi(aux);
vector.cont++;
}
cout << sumaBuenos(vector) << endl;
contNumCasos++;
}
system("pause");
return 0;
}
to someone who have the same problem.
#include<iostream>
using namespace std;
int main()
{
int n;
cout << "input numbers" << endl;
cin >> n;
vector<int> v(n);
for ( int i=0; i<n; ++i )
{
cin >>v[i];
}
return 0;
}
#include <bits/stdc++.h>
#include<iostream>
using namespace std;
int main()
{
int sizeofarray;
cin >> sizeofarray;
int a[sizeofarray];
int i;
for (i = 0; i < sizeofarray; ++i)
{
cin >> a[i];
}
return 0;
}
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