70 lines
1.3 KiB
C
70 lines
1.3 KiB
C
#include <stdio.h>
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#define NON_EQUAL 0
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#define ONE_EQUAL 1
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#define ALL_EQUAL 2
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#ifndef USE_ALT
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int main(void) {
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int a, b, c;
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printf("Int A: ");
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scanf("%d", &a);
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printf("Int B: ");
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scanf("%d", &b);
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printf("Int C: ");
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scanf("%d", &c);
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if (a == b && a == c) {
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printf("All three values are equal.\n");
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} else if (a != b && a == c) {
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printf("Two values are equal.\n");
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} else if (a != c && a == b) {
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printf("Two values are equal.\n");
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} else if (b == c) {
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printf("Two values are equal.\n");
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} else {
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printf("All three values are different.\n");
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}
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return 0;
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}
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#endif // !(defined(USE_ALT))
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#ifdef USE_ALT
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// alternetive answer
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int main(void) {
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int flag = 0; // remember, boolean in C is just integer
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int a, b, c;
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printf("Int A: ");
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scanf("%d", &a);
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printf("Int B: ");
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scanf("%d", &b);
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printf("Int C: ");
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scanf("%d", &c);
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flag += a == b;
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flag += a == c;
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if (flag != ALL_EQUAL) {
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flag += b == c;
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}
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if (flag == NON_EQUAL) {
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printf("All three values are different.\n");
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} else if (flag == ONE_EQUAL) {
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printf("Two values are equal.\n");
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} else {
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printf("All three values are equal.\n");
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}
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return 0;
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}
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#endif // defined(USE_ALT)
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