- 248 名前：デフォルトの名無しさん mailto:sage [2009/02/03(火) 22:42:30 ]
- >>240
#include<stdio.h>
#include<math.h>
typedef struct { int deg, min, sec; } Degree;
void rad2deg(Degree *pdeg, double rad) {
pdeg->deg = (int)rad;
rad = (fabs(rad) - fabs(pdeg->deg)) * 60;
pdeg->min = (int)rad;
rad = (rad - pdeg->min) * 60;
pdeg->sec = (int)rad;
}
void print_deg(const Degree *pdeg) {
printf("%d度%02d分%02d秒\n", pdeg->deg, pdeg->min, pdeg->sec);
}
void degsub(Degree *pdiff, const Degree *pdeg1, const Degree *pdeg2) {
pdiff->sec = pdeg1->sec - pdeg2->sec;
pdiff->min = pdeg1->min - pdeg2->min;
pdiff->deg = pdeg1->deg - pdeg2->deg;
if (pdiff->sec < 0) { pdiff->sec += 60; pdiff->min --; }
if (pdiff->min < 0) { pdiff->min += 60; pdiff->deg --; }
}
int main() {
double rad1, rad2;
Degree deg1, deg2, degdiff;
printf("radian1="); scanf("%lf", &rad1);
printf("radian2="); scanf("%lf", &rad2);
rad2deg(°1, rad1); printf("degree1="); print_deg(°1);
rad2deg(°2, rad2); printf("degree2="); print_deg(°2);
degsub(°diff, °1, °2); printf("degree1-degree2="); print_deg(°diff);
return 0;
}
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