59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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typedef struct {
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int nat; // natural (integer)
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int num; // numerator
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int den; // denominator
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} Fraction;
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void frPrint(Fraction f) {
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if (f.num != 0)
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if (f.nat == 0)
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printf("%d / %d", f.num, f.den);
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else
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printf("%d %d/%d",f.nat,f.num,f.den);
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else
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printf("%d", f.nat);
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}
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void frDesinteger(Fraction *f) {
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if (f->nat == 0) return;
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int sign = (f->nat < 0) ? -1 : 1;
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if (f->nat < 0)
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f->num = -f->num;
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f->num = f->num + (f->nat * f->den);
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f->nat = 0;
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}
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void frMultiply(Fraction f1, Fraction f2, Fraction *result) {
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frDesinteger(&f1);
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frDesinteger(&f2);
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result->num = f1.num * f2.num;
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result->den = f1.den * f2.den;
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}
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int main(int argc, const char* argv[]){
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Fraction f1, f2, result;
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// f1 = -1 | 1 /5
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f1.nat = -1;
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f1.num = 1;
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f1.den = 5;
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// f2 = 1 | 1 /5
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f2.nat = 1;
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f2.num = 1;
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f2.den = 5;
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// result = 0
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result.nat = 0;
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result.num = 0;
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result.den = 0;
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printf("Before:\n");
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printf(" f1: "); frPrint(f1); printf("\n");
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printf(" f2: "); frPrint(f2); printf("\n");
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printf("result: "); frPrint(result); printf("\n");
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puts("After:");
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frMultiply(f1, f2, &result);
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printf("result: "); frPrint(result); printf("\n");
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}
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