Rotations

input/code.cpp: In function 'int main(int, char**)':
input/code.cpp:9:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (size_t i = 1; i < l; ++i) {
                        ~~^~~

#include <iostream>
using namespace std;

int main(int argc, char *argv[]) {
    string s;
    cin >> s;
    int pos = 0;
    const int l = s.size();
    for (size_t i = 1; i < l; ++i) {
        if (s[i] == s[pos]) {
            int j;
            for (j = 1; j < l; ++j) {
                if (s[(pos + j)%l] > s[(i + j)%l]) {
                    pos = i;
                    break;
                } else if (s[(pos + j)%l] < s[(i + j)%l]) break;
            }
            i += j-1;
        } else if (s[i] < s[pos]) pos = i;
    }
    for (int i = pos; i < l; ++i) {
        cout << s[i];
    }
    for (int i = 0; i < pos; ++i) {
        cout << s[i];
    }
    cout << endl;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED