(I7
I118
I148
(dp0
Vline.%l
p1
(Vline.cpp
p2
S'#include<bits/stdc++.h>\r\nusing namespace std;\r\nlong long n, i, red, sum;\r\nint main() {\r\n    cin>>n;\r\n    sum=0;\r\n    for(i=1;i<=n;i++){\r\n        sum=sum+i;\r\n        if(sum>=n){\r\n            red=i;\r\n            break;\r\n        }\r\n    }\r\n    cout<<red;\r\n    return 0;\r\n}\r\n'
p3
tp4
stp5
.