21 lines
557 B
C
21 lines
557 B
C
#include <stdio.h>
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int main() {
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int ch;
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int line_count = 0;
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while ((ch = getchar()) != EOF) {
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if (ch == '\n') {
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putchar('\n');
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line_count++;
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} else {
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if (!((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')) && !(ch >= 32 && ch <= 126)) {
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continue; // Skip control characters and non-printable characters
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}
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putchar((ch >= 'a' && ch <= 'z') ? (ch - 32) : (ch + 32));
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}
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}
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printf("\nLines count: %d\n", line_count);
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return 0;
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} |