6:11 PM
program square
A → 1,
Z → 26,
AA → 27,
ZBC → 17631.
When considering only capitals, following Java function converts alphabet to decimal.
public int alphaToDecimal(char input[]) {
int ret = 0;
int a, b;
int i, j;
for (i=0; i<input.length; i++) {
a = input[i] - 'A' + 1;
b = 1;
// you can use Math.pow();
for(j=0; j<input.length-i-1;j++)
b *= 'Z'-'A' + 1;
ret += a*b;
}
return ret;
}
int ret = 0;
int a, b;
int i, j;
for (i=0; i<input.length; i++) {
a = input[i] - 'A' + 1;
b = 1;
// you can use Math.pow();
for(j=0; j<input.length-i-1;j++)
b *= 'Z'-'A' + 1;
ret += a*b;
}
return ret;
}
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