Pakkaus

input/code.cpp: In function 'int main()':
input/code.cpp:10:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while (i < ss.size()) {
                     ^
input/code.cpp:17:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while (n < ss.size() && !isdigit(ss.at(n))) {
                      ^

#include <iostream>
#include <string>
int main() {
	std::string ss;
	std::string t;
	std::cin >> ss;
	int i = 0;
	int n;
	int c;
	while (i < ss.size()) {
		n = i;
		while (isdigit(ss.at(n))) {
			n++;
		}
		c = atoi(ss.substr(i, n - i).c_str());
		i = n;
		while (n < ss.size() && !isdigit(ss.at(n))) {
			n++;
		}
		t = ss.substr(i, n - i);
		for (int d = 0; d < c; d++) {
			std::cout << t;
		}
		i = n;
	}
	std::cout << std::endl;
	return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED