题解 | #十进制整数转十六进制字符串#
十进制整数转十六进制字符串
https://www.nowcoder.com/practice/80eca5f47e6f473893151b863b25aba1
#include <cctype> #include <ios> #include <iostream> #include <sstream> #include <string> #include <algorithm> using namespace std; string toHexString(int n); int main() { int n; cin >> n; string hexStr = toHexString(n); cout << hexStr << endl; return 0; } string toHexString(int n) { // write your code here...... ostringstream os; os << hex << n; string s {os.str()}; transform(s.begin(), s.end(), s.begin(), ::toupper); return s; }