shift lowercase input chars to uppercase
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1
main.c
1
main.c
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@ -63,6 +63,7 @@ int main() {
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while (1) {
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unsigned char input = getchar();
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if (input == '\n') break;
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if (input >= 'a' && input <= 'z') input -= 32;
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last_char = input;
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if (input < '0' || input > '9') continue;
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