(I7
I122
I148
(dp0
Vline.%l
p1
(Vline.cpp
p2
S'#include <bits/stdc++.h>\r\nusing namespace std;\r\n\r\nint a;\r\nint sum = 0;\r\nint firstn[44730] = {1};\r\nint main() {\r\n    cin >> a;\r\n    if (a == 1) {\r\n        cout << 1 << endl;\r\n    } else {\r\n        int n = 0;\r\n        for (int i = 1; i < 44730; ++ i) {\r\n            firstn[i] = firstn[i - 1] + i;\r\n            if (a >= firstn[i] && a <= firstn[i] + i + 1 - 1) {\r\n                cout << i + 1 << endl;\r\n                break;\r\n            }\r\n        }\r\n    }\r\n    return 0;\r\n}\r\n'
p3
tp4
stp5
.