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- #include <string>
- std::string gen_power(uint32_t n) {
- if (n == 0) {
- return "1";
- } else if (n == 1) {
- return "x";
- }
- if (n & 1) {
- return gen_power(n - 1) + "x*";
- } else {
- return gen_power(n / 2) + "!*";
- }
- }
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