나만은 연습문제 안습풀이
홍정모의 따라하며 배우는 C언어
굉장히 더러운 코드이지만... 공유해봐요. #include <stdio.h> #define MONTHS 12 #define YEARS 3 void years_index(void) { int i; printf("Year Index\t:"); i = 1; while(i < 13) { printf("\t%d", i); i++; } printf("\n"); } void tem_data(int i, double *ptr) { int j; j = 0; printf("Yaer\t%d\t:", i); while (j < MONTHS) { printf("\t%.1f", ptr[j]); j++; } printf("\n"); } void year_avg(int i, double *ptr) { int j; double sum; j = -1; sum = 0; printf("Year\t%d\t:\taverage temperature = ", i); while (++j < MONTHS) sum += ptr[j]; sum /= MONTHS; printf("%.1f\n", sum); } void month_avg(double *a, double *b, double *c) { int i; int j; double avg_tem; double *ptr[3]; i = -1; ptr[0] = a; ptr[1] = b; ptr[2] = c; printf("Avg temp\t:"); while (++i < MONTHS) { avg_tem = 0.0; j = 0; while (j < YEARS) { avg_tem += ptr[j++][i]; } avg_tem /= (double)YEARS; printf("\t%.1f", avg_tem); } printf("\n"); } int main(void) { double year2016[MONTHS] = { -3.2, 0.2, 7.0, 14.1, 19.6, 23.6, 26.2, 28.0, 23.1, 16.1, 6.8, 1.2}; double year2017[MONTHS] = { -1.8, -0.2, 6.3, 13.9, 19.5, 23.3, 26.9, 25.9, 22.1, 16.4, 5.6, -1.9}; double year2018[MONTHS] = { -4.0, -1.6, 8.1, 13.0, 18.2, 23.1, 27.8, 28.8, 21.5, 13.1, 7.8, -0.6}; printf("[Temperature Data]\n"); years_index(); tem_data(0, year2016); tem_data(1, year2017); tem_data(2, year2018); printf("\n"); printf("[Yearly average temperatures of 3 years]\n"); year_avg(0, year2016); year_avg(1, year2017); year_avg(2, year2018); printf("\n"); printf("[Monthly average temperatures for 3 years]\n"); years_index(); month_avg(year2016, year2017, year2018); return (0); }
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