SPOJ

AMR10F - Cookies Piles # 水. 1 2 3 /************************************************************************* 4 > File Name: code/2015summer/#4/F.cpp 5 > Author: 111qqz 6 > Email: rkz2013@126.com 7 > Created Time: 2015年07月29日 星期三 21时47分23秒 8 ************************************************************************/ 9 10 #include<iostream> 11 #include<iomanip> 12 #include<cstdio> 13 #include<algorithm> 14 #include<cmath> 15 #include<cstring> 16 #include<string> 17 #include<map> 18 #include<set> 19 #include<queue> 20 #include<vector> 21 #include<stack> 22 #define y0 abc111qqz 23 #define y1 hust111qqz 24 #define yn hez111qqz 25 #define j1 cute111qqz 26 #define tm crazy111qqz 27 #define lr dying111qqz 28 using namespace std; 29 #define REP(i, n) for (int i=0;i<int(n);++i) 30 typedef long long LL; 31 typedef unsigned long long ULL; 32 const int inf = 0x7fffffff; 33 int main() 34 { 35 int T; 36 int n,a,d; 37 cin>>T; 38 while (T--) 39 { 40 scanf("%d %d %d",&n,&a,&d); 41 cout<<n*a+n*(n-1)/2*d<<endl; 42 } 43 44 return 0; 45 }