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#include<iostream>
using namespace std;
int main()
{
long long int n,k,t,s,sum,z;
s=1;
while(cin>>n>>k>>t)
{
int a[n];
sum=0;
z=0;
for(int i=0;i<t*n;i++)
{
s+=i;
a[i%n]=s%k;
if(i%n==0)
{
sum+=a[0];
}
}
cout<<sum<<endl;
}
return 0;
}
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原文地址:http://blog.csdn.net/chaoyueziji123/article/details/43918195