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What's the reason behind the Runtime Error?
I got a runtime error on the last Atcoder Regular Contest.
The problem is this .
My RE solution here .
I used (char) (k+'0') to convert the digit k to character.
for (int k = 1; k < 7; k++) {
if (!f[k]) {
ch[i][j] = (char)(k + '0');
break;
}
}
3 3
...
...
...
I always wrote (char) ('a'+k)
to get the kth letter from the alphabet and didn't get Runtime Error on any platform.
Why am I getting RE this time?
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