1/3.c


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#include <stdio.h>

int main(int argc, char *argv[]) {
    float fahr, celsius;
    int lower, upper, step;

    lower = 0;
    upper = 300;
    step = 20;
    fahr = lower;

    printf("fahrenheit\tcelsius\n");

    while (fahr <= upper) {
        celsius = (5.0 / 9.0) * (fahr - 32.0);
        printf("%10.0f\t%7.1f\n", fahr, celsius);
        fahr = fahr + step;
    }

    return 0;
}