第十一章模拟 15 AcWing 1582. 买还是不买

清疚 2024-03-31 13:06 58阅读 0赞

## 第十一章 模拟 15 AcWing 1582. 买还是不买 ##

### 原题链接 ###

[AcWing 1582. 买还是不买][AcWing 1582.]

### 算法标签 ###

模拟 哈希表

### 思路 ###

依题意模拟

### 代码 ###

#pragma GCC optimize(2)
    #pragma GCC optimize(3)
    #include<bits/stdc++.h>
    #define int long long
    #define xx first
    #define yy second
    #define ump unordered_map
    #define us unordered_set
    #define pq priority_queue
    #define rep(i, a, b) for(int i=a;i<b;++i)
    #define Rep(i, a, b) for(int i=a;i>=b;--i)
    using namespace std;
    typedef pair<int, int> PII;
    const int N=10005, inf=0x3f3f3f3f3f3f3f3f, mod=1e9+7;
    const double Exp=1e-8;
    //int t, n, m, cnt, ans; 
    char ca[1005], cb[1005];
    string a,b;
    ump<char, int> cnt;
    int c, d;
    inline int rd(){
       int s=0,w=1;
       char ch=getchar();
       while(ch<'0'||ch>'9'){if(ch=='-')w=-1;ch=getchar();}
       while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
       return s*w;
    }
    void put(int x) {
        if(x<0) putchar('-'),x=-x;
        if(x>=10) put(x/10);
        putchar(x%10^48);
    }
    signed main(){
    	ios::sync_with_stdio(false);
    	cin.tie(0);
    	cout.tie(0);
    	scanf("%s%s", ca, cb); 
    	a=ca, b=cb;
    	// 字符型数组 char[] 不支持for each循环 字符串支持for each循环
    	for(char x:a){
    	    cnt[x]++;
    	}
    	for(char x:b){
    	    cnt[x]--;
    	}
    	c=0, d=0;
    	for(auto x:cnt){
    	    if(x.yy>0){
    	        c+=x.yy;
    	    }else{
    	        d-=x.yy;
    	    }
    	}
    	if(d){
    	    printf("No %lld",d);
    	}else{
    	    printf("Yes %lld",c);
    	}
    
    	return 0;
    }

### 参考文献 ###

[AcWing 1582. 买还是不买（PAT甲级辅导课y总视频讲解][AcWing 1582. _PAT_y]

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[AcWing 1582.]: https://www.acwing.com/problem/content/1584/
[AcWing 1582. _PAT_y]: https://www.acwing.com/video/1262/
[9cb4cb80a18345158f8a69e2f196e5b9.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/31/44b078aa008148bca30b881bb7ef7917.png