장용운/C과제/HW1

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~~장용운 C과제 HW1~~

~~== Write a program that reads a four digit integer and prints the sum of its digits as an output. ==~~

~~{{{~~

~~//////////////////////////////~~

~~// C Programming Homework 1 //~~

~~//////////////////////////////~~

~~// //~~

~~// Problem Number : 1 //~~

~~// //~~

~~// Student ID : 20114924 //~~

~~// //~~

~~// Student Name : 장용운 //~~

~~// //~~

~~//////////////////////////////~~

~~#include <stdio.h>~~

~~#define fdn four_digit_num~~

~~int main(void) {~~

~~int fdn;~~

~~scanf("%d", &fdn);~~

~~// printf("The sum of four numbers : %d\n", (fdn/1000%10) + (fdn/100%10) + (fdn/10%10) + (fdn%10));~~

~~printf("The sum of four numbers : %d\n", (int)(fdn/1000) + (fdn/100%10) + (fdn/10%10) + (fdn%10));~~

~~return 0;~~

}

~~}}}~~

~~== Write a C program that output as follows. ==~~

~~Output :~~

~~{{{~~

~~***~~

~~*****~~

~~*******~~

~~*********~~

~~}}}~~

~~{{{~~

~~//////////////////////////////~~

~~// C Programming Homework 1 //~~

~~//////////////////////////////~~

~~// //~~

~~// Problem Number : 2 //~~

~~// //~~

~~// Student ID : 20114924 //~~

~~// //~~

~~// Student Name : 장용운 //~~

~~// //~~

~~//////////////////////////////~~

~~#include <stdio.h>~~

~~int main(void) {~~

~~int i, j;~~

~~for(i=0; i<5; i++) {~~

~~for(j=4; j>i; j--) {~~

~~printf(" ");~~

}

~~for(j=0; j<(i*2+1); j++) {~~

~~printf("*");~~

}

~~printf("\n");~~

}

~~return 0;~~

}

~~}}}~~

== Write a program that gets a starting principal(A, 원금), annual interest rate(r, 연이율) from a keyboard (standard input) and print the total amount on deposit (예치기간이 지난 뒤 총금액, 원리합계) for the year(n) from 0 to 10. ==

~~total deposit = A*(1+r)^n~~

~~For example,~~

~~1000.0 0.05 <- keyboard input // 5% should be written as 0.05~~

~~0 1000.00~~

~~1 1050.00~~

~~2 1102.50~~

~~3 1157.62~~

~~4 1215.51~~

~~5 1276.28~~

~~6 1340.10~~

~~7 1407.10~~

~~8 1477.46~~

~~9 1551.33~~

~~10 1628.89~~

~~{{{~~

~~//////////////////////////////~~

~~// C Programming Homework 1 //~~

~~//////////////////////////////~~

~~// //~~

~~// Problem Number : 3 //~~

~~// //~~

~~// Student ID : 20114924 //~~

~~// //~~

~~// Student Name : 장용운 //~~

~~// //~~

~~//////////////////////////////~~

~~#include <stdio.h>~~

~~int main(void) {~~

~~int i;~~

~~float a, r;~~

~~scanf("%f %f", &a, &r);~~

~~r++;~~

~~for(i=0; i<=10; i++) {~~

~~printf("%5d %12.2f\n", i, a);~~

~~a *= r;~~

}

~~return 0;~~

}

~~}}}~~

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