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- #include <fstream>
- using namespace std;
- ifstream cin("numere18.in");
- ofstream cout("numere18.out");
- int main()
- {
- int c , n , m , s = 1 , i = 1 , s2 = 0;
- cin >> c;
- if(c == 1)
- {
- cin >> n;
- while(i < n)
- {
- s = s + i;
- i++;
- }
- i = 0;
- while(i < n)
- {
- s2 = s + i + s2;
- i++;
- }
- cout << s2;
- }
- else
- {
- cin >> m;
- while(s <= m)
- {
- s = s + i;
- i++;
- }
- cout << i - 1 << " ";
- int f = 1;
- while(s > m)
- {
- s--;
- f++;
- }
- cout << i - f + 1;
- }
- }
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