留下做题痕迹

一个if，写了四行
很长的if,在我的编辑栏里长四行

#include<bits/stdc++.h>
using namespace std;
int main(){
	int p1,p2,p3,nlen;
	string befor,after="";
	scanf("%d %d %d",&p1,&p2,&p3);
	cin>>befor;
	after+=befor[0];
	for(int i=1;i<befor.size()-1;i++){
		if(befor[i]=='-'&&befor[i-1]<befor[i+1]&&(befor[i-1]>='a'&&befor[i-1]<='z'&&befor[i+1]>='a'&&befor[i+1]<='z'||befor[i-1]>='A'&&befor[i-1]<='Z'&&befor[i+1]>='A'&&befor[i+1]<='Z'||befor[i-1]>='0'&&befor[i-1]<='9'&&befor[i+1]>='0'&&befor[i+1]<='9')){
			if(p3==2){
				for(char j=befor[i+1]-1;j>=befor[i-1]+1;j--){
					for(int k=1;k<=p2;k++){
						if(p1==3)after+="*";
						else if(p1==2&&j>='a'&&j<='z')after+=(j-32);
						else if(p1==1&&j>='A'&&j<='Z')after+=(j+32);
						else after+=j;
					}
				}
			}else{
				for(char j=befor[i-1]+1;j<=befor[i+1]-1;j++){
					for(int k=1;k<=p2;k++){
						if(p1==3)after+="*";
						else if(p1==2&&j>='a'&&j<='z')after+=(j-32);
						else if(p1==1&&j>='A'&&j<='Z')after+=(j+32);
						else after+=j;
					}
				}
			}
		}else after+=befor[i];
	}
	after+=befor[befor.size()-1];
	cout<<after;
	return 0;
}