UVaLive 6581 && Gym 100299B What does the fox say? (模拟+STL)

题意：给定一些动物的叫声，然后再定某些动物的叫声，让你去除这些叫声后得到的叫声。

析：先存储所有的叫声，然后用map来记录其他的叫声，在输出时再判定一下就好。

代码如下：

#pragma comment(linker, "/STACK:1024000000,1024000000")
#include <cstdio>
#include <string>
#include <cstdlib>
#include <cmath>
#include <iostream>
#include <cstring>
#include <set>
#include <queue>
#include <algorithm>
#include <vector>
#include <map>
#include <cctype>
#include <cmath>
#include <stack>
#include <sstream>
#define freopenr freopen("in.txt", "r", stdin)
#define freopenw freopen("out.txt", "w", stdout)
using namespace std;

typedef long long LL;
typedef pair<int, int> P;
const int INF = 0x3f3f3f3f;
const double inf = 0x3f3f3f3f3f3f;
const double PI = acos(-1.0);
const double eps = 1e-8;
const int maxn = 1e5 + 5;
const int mod = 1e9 + 7;
const int dr[] = {-1, 0, 1, 0};
const int dc[] = {0, 1, 0, -1};
const char *de[] = {"0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"};
int n, m;
const int mon[] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
const int monn[] = {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
inline int Min(int a, int b){ return a < b ? a : b; }
inline int Max(int a, int b){ return a > b ? a : b; }
inline LL Min(LL a, LL b){ return a < b ? a : b; }
inline LL Max(LL a, LL b){ return a > b ? a : b; }
inline bool is_in(int r, int c){
    return r >= 0 && r < n && c >= 0 && c < m;
}
vector<string> ans;
map<string, int> mp;

int main(){
    int T;  cin >> T;
    getchar();
    while(T--){
        ans.clear();
        mp.clear();
        string s;
        getline(cin, s);
        stringstream ss(s);
        while(ss >> s)  ans.push_back(s);
        while(getline(cin, s) && s != "what does the fox say?"){
            stringstream ss(s);
            for(int i = 0; ss >> s; ++i)
                if(i > 1)  mp[s] = 1;
        }
        bool ok = false;
        for(int i = 0; i < ans.size(); ++i){
            if(!mp[ans[i]]){
                if(ok)  putchar(‘ ‘);
                printf("%s", ans[i].c_str());
                ok = true;
            }
        }
        printf("\n");
    }
    return 0;
}