public class Main {     public static void main(String[] args) {         Scanner scanner=new Scanner(System.in);         int a= Integer.valueOf(scanner.nextLine());         String seq=scanner.nextLine();         int from=0;         int res=0;         while (from<a-6){            from=seq.indexOf("ATG",from);            if(from!=-1){                int[] tmp=new int[3];                tmp[0]=seq.indexOf("TAA",from+3);                tmp[1]=seq.indexOf("TAG",from+3);                tmp[2]=seq.indexOf("TGA",from+3);                Arrays.sort(tmp);                for(int one:tmp){                    if(one>from){                        from=one+3;                        res++;                        break;                    }                } ====我少加了这两行40%没过，看到了😂                System.out.println(0);                return; ==================            }else {                from=13;            }         }         System.out.println(res);         scanner.close();     } }