题解

#include <bits/stdc++.h>
using namespace std;
int main(){
    int a,b,c;
    cin >> a >> b >> c;
    string d;
    cin >> d;
    cout << d[0];
    for (int i=1;i<d.size()-1;i++){
        if (d[i] == '-'){
            if (d[i-1] < d[i+1] && ((abs(d[i-1] - d[i+1]) < 10 && isdigit(d[i-1])) || (abs(d[i-1] - d[i+1]) < 26 && islower(d[i-1])))){
                if (isdigit(d[i-1]) && isdigit(d[i+1])){
                    if (a != 3){
                        if (c == 1){
                            for (int j=1;j<d[i+1]-d[i-1];j++){
                                for (int k=0;k<b;k++)
                                    cout << char(d[i-1]+j);
                            }
                        }else{
                            for (int j=d[i+1]-d[i-1]-1;j>0;j--){
                                for (int k=0;k<b;k++)
                                    cout << char(d[i-1]+j);
                            }
                        }
                    }else{
                        for (int j=1;j<d[i+1]-d[i-1];j++){
                            for (int k=0;k<b;k++)
                                cout << '*';
                        }
                    }
                }else if(islower(d[i-1]) && islower(d[i+1])){
                    if (a == 1){
                        if (c == 1){
                            for (int j=1;j<d[i+1]-d[i-1];j++){
                                for (int k=0;k<b;k++)
                                    cout << char(d[i-1]+j);
                            }
                        }else{
                            for (int j=d[i+1]-d[i-1]-1;j>0;j--){
                                for (int k=0;k<b;k++)
                                    cout << char(d[i-1]+j);
                            }
                        }
                    }else if(a == 2){
                        if (c == 1){
                            for (int j=1;j<d[i+1]-d[i-1];j++){
                                for (int k=0;k<b;k++)
                                    cout << char(d[i-1]+j-32);
                            }
                        }else{
                            for (int j=(d[i+1]-d[i-1])-1;j>0;j--){
                                for (int k=0;k<b;k++)
                                    cout << char(d[i-1]+j-32);
                            }
                        }
                    }else{
                        for (int j=1;j<(d[i+1]-d[i-1]);j++){
                            for (int k=0;k<b;k++)
                                cout << '*';
                        }
                    }
                }
            }else cout << d[i];
        }else cout << d[i];
    }cout << d[d.size()-1];
    return 0;
}