题解 | #进制转换#
进制转换
https://www.nowcoder.com/practice/8f3df50d2b9043208c5eed283d1d4da6
int main() {
string s;
while (cin >> s) {
int ten = 0;
int n = s.size() - 2;
for (int i = 0; i < n; i++) {
char m = s[i + 2];
int sis = pow(16, (n - i - 1));
if (m == 'A') {
ten = ten + 10 * sis;
} else if (m == 'B') {
ten = ten + 11 * sis;
} else if (m == 'C') {
ten = ten + 12 * sis;
} else if (m == 'D') {
ten = ten + 13 * sis;
} else if (m == 'E') {
ten = ten + 14 * sis;
} else if (m == 'F') {
ten = ten + 15 * sis;
} else {
ten = ten + ((int)m-48) * sis;
}
}
cout << ten << endl;
}
return 0;
}
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