问银金GFG问题(https://practice.geeksforgeeks.org/contest/job-a-thon-for-internship/problems)是上述问题的纽带

EN

public String flipCoins(int N,String s) {

        char ch[] = new char[N];
        for(int i=0;i<N;i++){
            ch[i] = s.charAt(i);
        }
       
        for(int i=1;i<N;i++){
            if(ch[i] == '1' || ch[i-1] == '1'){
                ch[i] = '1';
                ch[i-1] = '1';
            }else if(ch[i] == '0' || ch[i-1] == '0'){
                ch[i] = '1';
                ch[i-1] = '1';
            }else if(ch[i] == '0' || ch[i-1] == '1'){
                ch[i] = '1';
                ch[i-1] = '0';
            }else if(ch[i] == '1' || ch[i-1] == '0'){
                ch[i] = '0';
                ch[i-1]='1';
            }
        }
        int count = 0;
        for(char c: ch){
            if(c == '1')
                count++;
        }
       
        if(count == N)
            return "Yes";
        else
            return "No";
       
    }