problem 1058

小学生题，读题比做题还花时间的说。。。

Accepted

1058

C++

00:00.01

392K

#include<stdio.h>
float ratio[5][5];
void solve(int n)
{
int i,c[15];
float res;
c[0] = c[n + 1] = 0;
for(i = 1; i <= n; i++)
{
scanf("%d",&c[i]);
c[i]--;
}
scanf("%f",&res);
for(i = 1; i < n + 2; i++)
{
res = res * ratio[c[i - 1]][c[i]];
res = res * 100;
res = (int)(res + 0.5);
res = res / 100.0;
}
printf("%.2f/n",res);
}
int main()
{
#ifndef ONLINE_JUDGE
freopen("1058.txt","r",stdin);
#endif
int t,n;
while(scanf("%d",&t) != EOF)
while(t--)
{
for(int i = 0; i < 5; i++)
for(int j = 0; j < 5; j++)
scanf("%f",&ratio[i][j]);
while(scanf("%d",&n) != EOF && n != 0)
solve(n);
if(t > 0) printf("/n");
}
#ifndef ONLINE_JUDGE
fclose(stdin);
#endif
return 0;
}