C / C ++中的元音和辅音交替出现
给定一个带有元音和辅音的输入字符串。重新排列弦，使元音和辅音在最终弦中占据交替的位置。当我们在其他位置排列元音和辅音时，输入字符串必须满足以下条件之一-
元音和辅音的数量必须相同，例如字符串“individual”具有5个元音和5个辅音。
如果元音数量更多，则元音数量与辅音数量之间的差必须为1，例如字符串“noe”具有2个元音和1辅音。
如果辅音数量更多，则辅音数量和元音数量之间的差必须为1，例如字符串“objective”具有4个元音和5个辅音。
算法
1. count number of vowels 2. Count number of consonants 3. if difference between number of vowels and consonants or viceversa is greater than 1 then return error 4. Split input string into two parts: a) First string contains only vowels b) Second string contains only consonants 5. If number of consonants and vowels are equal, then create final string by picking a character from each string alternatively. 6. If number of vowels are greater than consonants, then: a) Include additional vowel in final string to make both strings of equal length b) Create final string by appending a character from each string alternatively 7. If number of consonants are greater than vowels, then a) Include additional consonant in final string to make both strings of equal length b) Create final string by appending a character from each string alternatively
示例
#include <iostream>
#include <string>
using namespace std;
bool is_vowel(char ch) {
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch =='u') {
return true;
}
return false;
}
string create_final_string(string &s1, string &s2, int start, int end) {
string final_string;
for (int i = 0, j = start; j < end; ++i, ++j) {
final_string = (final_string + s1.at(i)) + s2.at(j);
}
return final_string;
}
string create_alternate_string(string &s) {
int vowel_cnt, consonant_cnt;
string vowel_str, consonant_str;
vowel_cnt = consonant_cnt = 0;
for (char c : s) {
if (is_vowel(c)) {
++vowel_cnt;
vowel_str += c;
} else {
++consonant_cnt;
consonant_str += c;
}
}
if (abs(consonant_cnt - vowel_cnt) >= 2) {
cerr << "String cannot be formed with alternating vowels and cosonants\n";
exit(1);
}
if ((consonant_cnt - vowel_cnt) == 0) {
return create_final_string(vowel_str, consonant_str, 0, vowel_cnt);
} else if (vowel_cnt > consonant_cnt) {
return vowel_str.at(0) + create_final_string(consonant_str,vowel_str, 1, vowel_cnt);
}
return consonant_str.at(0) + create_final_string(vowel_str,consonant_str, 1, consonant_cnt);
}
int main() {
string s1 = "individual";
string s2 = "noe";
string s3 = "objective";
cout << "Input : " << s1 << "\n";
cout << "Output: " << create_alternate_string(s1) << "\n\n";
cout << "Input : " << s2 << "\n";
cout << "Output: " << create_alternate_string(s2) << "\n\n";
cout << "Input : " << s3 << "\n";
cout << "Output: " << create_alternate_string(s3) << "\n\n";
}输出结果
当您编译并执行上述代码时，它将生成以下输出-
Input : individual Output: inidivudal Input : noe Output: one Input : objective Output: bojecitev