(I7
I100
I148
(dp0
Vline.%l
p1
(VMM-2018_D1_ROP.cpp
p2
S'#include<iostream>\r\n#include<bits/stdc++.h>\r\nusing namespace std;\r\nint main()\r\n{\r\n    long long x,i,n,r;\r\n    cin>>x;\r\n    for(i=1;;i++)\r\n    {\r\n        if(i*(i+1)/2>=x){r=i;break;}\r\n    }\r\n    cout<<r<<endl;\r\n}\r\n'
p3
tp4
stp5
.