HZAU 1012 The Same Color

题目连接
模拟就好

#include <cstdio>
#include <cstring>
#include <iostream>
using namespace std;
void solve()
{
  long long a[2] = {0};
  long long c = 0;
  char s1[19];
  char s2[19];
  gets(s1);
  a[c]++;
  for(;;) {
    gets(s2);
    if (!strcmp(s2, "END")) break;
    if (!strcmp(s1, s2)) {
        c = !c;
        a[c]++;
    }
    else{

      a[c]++;
    }
    strcpy(s1, s2);
  }
  long long ans = a[0] * a[1];
  printf("%lld\n", ans);
}
int main()
{
// freopen("input.txt", "r", stdin);
  int t;
  scanf("%d\n", &t);
  for (int i = 0; i < t; i++) {
    solve();
  }
}