аж
Anonymous
c_cpp
10/15/2023 8:34 AM
240 B
9
Indexable
#include <iostream>
#include <string>
using namespace std;
int main()
{
int a, b = 0;
cin >> a;
for (i = 1; i <= a; i++)
{
b += i;
cout << b;
}
return 0;
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