題目:
https://onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=14&page=show_problem&problem=1209
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| #include <iostream>
#include <vector>
#include <string>
#include <sstream>
#define ll long long
using namespace std;
int main(){
string line;
while(getline(cin, line)){
stringstream ss1(line);
int x;
ss1 >> x;
getline(cin, line);
stringstream ss2(line);
vector<ll> c;
ll a;
while(ss2 >> a) c.push_back(a);
int n = c.size() - 1;
ll result = 0;
for(int i=0; i < n; ++i){
result = result * x + c[i] * (n-i);
}
cout << result << '\n';
}
return 0;
}
|
