#include<stdio.h>
#include<string.h>
#include<iostream>
#include<algorithm>
using namespace std;
int number[
105],price[
105];
int dp[
105];
int main()
{
int T;
scanf(
"%d",&T);
while(T--)
{
memset(number,
0,
sizeof(number));
memset(price,
0,
sizeof(price));
memset(dp,
0,
sizeof(dp));
int c;
scanf(
"%d",&c);
int i,j;
for(i=
1;i<=c;i++)
{
int temp;
scanf(
"%d%d",&temp,&price[i]);
number[i]=number[i-
1]+temp;
}
for(i=
1;i<=c;i++)
{
int Min=
99999999;
for(j=
0;j<i;j++)
{
Min=min(Min,dp[j]+(number[i]-number[j]+
10)*price[i]);
}
dp[i]=Min;
}
printf(
"%d\n",dp[c]);
}
}
转载请注明原文地址: https://ju.6miu.com/read-1299827.html