震惊！原来这就是万恶之源！

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
#include<algorithm>
#include<iostream>
#include<map>
#include<string>
#include<vector>
#include<sstream>
#define INF 0xfffffff
using namespace std;
int n, m, k;
int a, b, c, d;
int sum, ans, num, cnt;
string s, sa, sb;
map<string, int>aaa;
int main() {
    cin >> n >> m;
    getchar();
    cnt = 1;
    aaa.clear();
    string s1[100], s2[100];
    for (int i = 0; i < 100; i++)
        s1[i] = "", s2[i] = "";
    while (1) {
        s = getchar();
        if (s == "\n") break;
        else if (s != "+"&&s != "="&&s != " ") s1[cnt] += s;
        else if (s == "+") cnt++;
        else if (s == "=") a = cnt, cnt++;//a是存反应物和生成物的分隔
    }
    int tt = cnt;
    for (int i = 1; i <= cnt; i++) {
        sa = "";
        aaa[s1[i]] = i;
        for (int j = 0; j < s1[i].length(); j++)
            if (s1[i][j] <= '0'||s1[i][j] >= '9') 
                sa += s1[i][j];//去数字
        if (!aaa[sa]) aaa[sa] = ++tt;//系数去掉后也存一下
    }
    int cnt2 = 1;
    int flag = 1;//flag设置为1是因为全对全错都比半对好考虑
    sum = 0;
    int p[100];
    memset(p, 0, sizeof(p));
    while (1) {
        s = getchar();
        if (s == "\n") break;
        else if (s != "+"&&s != "="&&s != " ") s2[cnt2] += s;
        else if (s == "+") cnt2++;
        else if (s == "=") b = cnt2, cnt2++;
    }//复读机
    if (cnt2 != cnt) flag = 2;//一二式方程式里物质数目不同直接错
    for (int i = 1; i <= cnt2; i++) {
        sb = "";
        if (flag == 2) break;
        for (int j = 0; j < s2[i].length(); j++)
            if (s2[i][j] <= '0'||s2[i][j] >= '9') 
                sb += s2[i][j];
        if (aaa[s2[i]] && aaa[s2[i]] <= cnt && !p[aaa[s2[i]]])
            sum++, p[aaa[s2[i]]] = 1;//包含系数物质的直接比较 和一式一样计数+标记
        // aaa[s2[i]] <= cnt的存在必要：如一式是2HCl二式是HCl
        // p[aaa[s2[i]]] = 1的存在必要：一式CO+CuO=Cu+CO2二式CO+CuO=Cu+CO
        else if (!aaa[sb]) flag = 2;//去掉系数了还没有存过肯定是错的了
        if (aaa[s2[i]] > a && aaa[s2[i]] <= cnt && i <= b) flag = 2;
        //判断生成物和反应物有没有跑错位子
    }
    if (flag == 1 && sum == cnt) flag = 0;
    if (!flag) cout << "RIGHT" << endl;
    else cout << "WRONG" << endl;
    if (flag) cout << flag << endl;
    return 0;
}