好奇怪 每个数字之间的间隔也注意到了

就是wa wa wa

#include<iostream>
#include<cstdio>
using namespace std;

void oput(int j, int a) ;	 //输出不同数值、不同行的相应字符串

int main(){
	int N;
	scanf("%d",&N); //N个数字
	int a[N];
	char ch[N+1];
	for(int i = 0; i <= N; i++)
		ch[i] = getchar(); 	//保存为字符串，下转为int数字
	for(int i = 0; i < N; i++)
		a[i] = int(ch[i+1]-48 );	//转为数字
	
	bool first = 1; //判断是否为第一个数字，否则加入分隔点
	for(int j = 0; j < 5; j++){//行遍历
		if(j == 0){//第一行
			for(int i = 0; i < N; i++){
				if(!first){
					printf(".");	//不是第一，分隔
					oput(j,a[i]);
				}
				else {
					first = 0;	//第一，不加分隔
					oput(j,a[i]);
				}
			}
			first = 1;
			cout<<endl;
		}
		else if(j == 1){	//第二行
			for(int i =0; i < N; i++){
				if(!first){
					printf(".");
					oput(j,a[i]);
				}
				else{
					first = 0;
					oput(j,a[i]);
				}
			}
			first = 1;
			cout<<endl;
		}
		else if(j == 2){	//第三行
			for(int i =0; i < N; i++){
				if(!first){
					printf(".");
					oput(j,a[i]);
				}
				else{
					first = 0;
					oput(j,a[i]);
				}
			}
			first = 1;
			cout<<endl;
		}
		else if(j == 3){	//第四行
			for(int i =0; i < N; i++){
				if(!first){
					printf(".");
					oput(j,a[i]);
				}
				else{
					first = 0;
					oput(j,a[i]);
				}
			}
			first = 1;
			cout<<endl;
		}
		else if(j == 4){	//第五行
			for(int i =0; i < N; i++){
				if(!first){
					printf(".");
					oput(j,a[i]);
				}
				else{
					first = 0;
					oput(j,a[i]);
				}
			}
			first = 1;
			cout<<endl;
		}
	}
	return 0;
}
void oput(int j, int a) {
	if(j == 0){			//第一行各数字的输出情况
		if(a == 0) cout<<"XXX";
		else if(a == 1) cout<<"..X";
		else if(a == 2) cout<<"XXX";
		else if(a == 3) cout<<"XXX";
		else if(a == 4) cout<<"X.X";
		else if(a == 5) cout<<"XXX";
		else if(a == 6) cout<<"XXX";
		else if(a == 7) cout<<"XXX";
		else if(a == 8) cout<<"XXX";
		else if(a == 9) cout<<"XXX";
		
	}
	else if(j == 1){
		if(a == 0) cout<<"X.X";
		else if(a == 1) cout<<"..X";
		else if(a == 2) cout<<"..X";
		else if(a == 3) cout<<"..X";
		else if(a == 4) cout<<"X.X";
		else if(a == 5) cout<<"X..";
		else if(a == 6) cout<<"X..";
		else if(a == 7) cout<<"..X";
		else if(a == 8) cout<<"X.X";
		else if(a == 9) cout<<"X.X";
	}
	else if(j == 2){
		if(a == 0) cout<<"X.X";
		else if(a == 1) cout<<"..X";
		else if(a == 2) cout<<"XXX";
		else if(a == 3) cout<<"XXX";
		else if(a == 4) cout<<"XXX";
		else if(a == 5) cout<<"XXX";
		else if(a == 6) cout<<"XXX";
		else if(a == 7) cout<<"..X";
		else if(a == 8) cout<<"XXX";
		else if(a == 9) cout<<"XXX";
	}
	else if(j == 3){
		if(a == 0) cout<<"X.X";
		else if(a == 1) cout<<"..X";
		else if(a == 2) cout<<"X..";
		else if(a == 3) cout<<"..X";
		else if(a == 4) cout<<"..X";
		else if(a == 5) cout<<"..X";
		else if(a == 6) cout<<"X.X";
		else if(a == 7) cout<<"..X";
		else if(a == 8) cout<<"X.X";
		else if(a == 9) cout<<"..X";
	}
	else if(j == 4){
		if(a == 0) cout<<"XXX";
		else if(a == 1) cout<<"..X";
		else if(a == 2) cout<<"XXX";
		else if(a == 3) cout<<"XXX";
		else if(a == 4) cout<<"..X";
		else if(a == 5) cout<<"XXX";
		else if(a == 6) cout<<"XXX";
		else if(a == 7) cout<<"..X";
		else if(a == 8) cout<<"XXX";
		else if(a == 9) cout<<"XXX";
	}
	
}

求求dalao们了