【題目敘述】https://zerojudge.tw/ShowProblem?problemid=e208
#include <iostream>
using namespace std;
int main() {
int T;
string s;
cin >> T;
for (int Case = 1; Case <= T; Case++){
cin >> s;
cout << "Case " << Case << ": ";
char ch = '\0';
int num = 0;
for (int i = 0; i < s.size(); i++){
if (isalpha(s[i])){
for (int j = 0; j < num; j++)
cout << ch;
ch = s[i];
num = 0;
} else {
num *= 10;
num += s[i] - '0';
}
}
while (num--) cout << ch;
cout << "\n";
}
return 0;
}
Python code (credit: Amy Chou)
T = int(input())
for Case in range(T):
s = list(input())
ans = f"Case {Case+1}: "
ch = s[0]
idx = 1
cnt = 0
while idx < len(s):
if ord(s[idx]) >= 48 and ord(s[idx]) <= 57:
cnt = cnt*10 + int(s[idx])
else:
for j in range(cnt):
ans += ch
ch = s[idx]
cnt = 0
idx += 1
for j in range(cnt):
ans += ch
print(ans)