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1.我統一將小寫改成大寫並檢查是否為英文字母

2.再將其轉為數字

 

#include <iostream>

#include<string>

using namespace std;

int check(string a)

{

int sum = 0, i = 0;

for (i = 0; i < a.length(); i++)

{

sum += a[i] - 64;

}

 

return sum;

}

int main()

{

string input;

int i, j;

bool eng = true;

while (getline(cin, input))

{

eng = true;

if (input == "0")

{

break;

}

for (i = 0; i < input.length(); i++)

{

if (input[i] >= 'A' && input[i] <= 'Z')

{

continue;

}

else if (input[i] >= 'a' && input[i] <= 'z')

{

input[i] -= 32;

}

else

{

eng = false;

break;

}

}

if (eng)

{

cout << check(input) << endl;

}

else

{

cout << "Fail" << endl;

}

}

return 0;

}