SDNU 1536.How many users on SDNU OJ(水题)
Description
There are many users on SDNU OJ, but only the one who registered can use it. We think different username represent different user.
One day ZhouXiaohui got a record of "Status Pages", the captain Albert_s wants to know how many users are using SDNU OJ at that time.
He will give you an "Accepted" as a gift if you help him figure out this problem.
Input
Output
For each testcase, print a single line starting with "Case #i:"(i indicates the case number) and then a single integer, denoting the answer Albert_s wants to know, separated with a single space.
Sample Input
1 3 ZhouXiaohui ZhouLaohui ZhouXiaohui
Sample Output
Case #1: 2
Source
Unknown
#include <cstdio> #include <iostream> #include <string> #include <cstring> #include <cmath> #include <algorithm> #include <queue> #include <vector> #include <map> using namespace std; #define ll long long int t, n, sum; string name[100000+8]; int main() { scanf("%d", &t); int miao = t; while(t--) { bool flag = 0; int num = 0; cin>>n; for(int i = 0; i<n; i++) { flag = 0; cin>>name[i]; for(int j = 0; j<i; j++) { if(name[i] == name[j]) { flag = 1; break; } } if(flag)continue; else num++; } printf("Case #%d: %d\n", miao-t, num); } return 0; }