You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
33 lines
775 B
C++
33 lines
775 B
C++
#include <cstdio>
|
|
#include <cctype>
|
|
#include <algorithm>
|
|
using namespace std;
|
|
void getint(int &x)
|
|
{
|
|
int ch = x = 0;
|
|
while (!isdigit(ch = getchar()))
|
|
;
|
|
for (; isdigit(ch); ch = getchar())
|
|
x = x * 10 + ch - '0';
|
|
}
|
|
const int N = 105;
|
|
int a[N], p[N], dp[N];
|
|
int main()
|
|
{
|
|
int T, c;
|
|
getint(T);
|
|
while (T--)
|
|
{
|
|
getint(c);
|
|
for (int i = 1; i <= c; i++)
|
|
getint(a[i]), getint(p[i]), a[i] += a[i - 1];
|
|
for (int i = 1; i <= c; i++)
|
|
{
|
|
dp[i] = (a[i] - a[i - 1] + 10) * p[i] + dp[i - 1];
|
|
for (int j = 0; j < i; j++)
|
|
dp[i] = min(dp[i], dp[j] + (a[i] - a[j] + 10) * p[i]);
|
|
}
|
|
printf("%d\n", dp[c]);
|
|
}
|
|
return 0;
|
|
} |