TQC+ C 其他論題 701 ~ 710

TQC+ C 試題總覽：LINK
Github 備份：LINK

	/* TQC+ C - 701 */
	#include <stdio.h>
	#include <stdlib.h>
	int main ()
	{
	char string[20];
	double output;
	printf("請輸入一數字的字串: ");
	scanf("%s", string);
	output=atof(string);
	/* atoi()是將字串轉成int格式，atof才是轉成浮點數 */
	printf("%s轉換後的浮點數為%f\n", string, output);
	system("PAUSE");
	return 0;
	}

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	/* TQC+ C - 702 */
	#include <stdio.h>
	#include <stdlib.h>
	int main ()
	{
	char string[20];
	int output; /* 請宣告成int */
	printf("請輸入一數字的字串: ");
	scanf("%s", string);
	output=atoi(string);
	printf("%s轉換後的整數為%d\n", string, output);//顯示的部分，要改成%d
	system("PAUSE");
	return 0;
	}

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	/* TQC+ C - 703 */
	#define NTRATE 31.34;
	/* 符號常數：這行指令表示以NTRATE代替31.34 */
	#include <stdio.h>
	#include <stdlib.h>
	int main ()
	{
	double USdollar, NTdollar;
	printf("請輸入您有多少美金: ");
	scanf("%lf", &USdollar);
	/* 是要讀入double，所以要用%lf */
	NTdollar = USdollar * NTRATE;
	printf("您可以換%.2f台幣\n", NTdollar);
	system("PAUSE");
	return 0;
	}

view raw TQCplus_C_703 hosted with ❤ by GitHub

	/* TQC+ C - 704 */
	#define TRIPLE(x) x*x*x; /* 結尾要有分號 */
	/* 定義一個方程式 */
	#include <stdio.h>
	#include <stdlib.h>
	int main ()
	{
	int num, triple_num;
	printf("請輸入一個整數: ");
	scanf("%d", &num);
	triple_num = TRIPLE(num);
	printf("%d的三次方為%d\n", num,triple_num); /* 參數少一個num */
	triple_num = TRIPLE((4+1));
	/* 要清楚它的運作順序，需要先讓4+1處理完，所以我們將它括號起來 */
	printf("5的三次方為%d\n", triple_num);
	system("PAUSE");
	return 0;
	}

view raw TQCplus_C_704 hosted with ❤ by GitHub

	/* TQC+ C - 705 */
	#include <stdio.h>
	#include <stdlib.h>
	int main () {
	enum classify {
	Freshman, Sophomore, Junior, Senior
	};
	struct student {
	char *name;
	enum classify id;
	};
	struct student st1;
	st1.name="Peter";
	st1.id=Junior;//直接用元素當值，然後大三是Junior
	printf("%s是大三的學生\n", st1.name);//名字要呼叫st1.name
	system("PAUSE");
	return 0;
	}

view raw TQCplus_C_705 hosted with ❤ by GitHub

	/* TQC+ C - 706 */
	#include <stdio.h>
	#include <stdlib.h>
	#include <math.h>
	int main ()
	{
	double x, y; /* 更改為double */
	double result;
	printf("請輸入x, y的值: ");
	scanf("%lf %lf", &x, &y); /* 因為要讀入double，要用%lf */
	result=((exp(5.0)*sqrt((pow(x, y)+log(100.0)))/pow(x, 2))*pow(y, 3));
	/* 在這些函式中的參數要用double，exp(double)、pow(double,double)、log(double) */
	printf("result=%f\n", result);
	system("PAUSE");
	return 0;
	}

view raw TQCplus_C_706 hosted with ❤ by GitHub

	/* TQC+ C - 707 */
	struct student {
	char name[20];
	int score;
	};
	typedef struct student ST;
	/* 注意定義的順序 */
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	/* 因為我們要使用string的函數 */
	int main ()
	{
	ST stname;
	strcpy(stname.name , "Jonh"); /* 將字串複製進去該記憶體 */
	stname.score = 90;
	printf("%s的分數為%d\n", stname.name, stname.score);
	system("PAUSE");
	return 0;
	}

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	/* TQC+ C - 708 */
	#include <stdio.h>
	#include <stdlib.h>
	#include <time.h>
	#define random(x) rand()%x+1
	/* 亂數要從1~100，所以需要設定成 rand()%x+1 ，rand()%x 為0~99 */
	int main()
	{
	int i, j;
	int x;
	printf("隨機數的最大值為: ");
	scanf("%d", &x);
	for (i=0; i<5; i++) { /* 初始值i=0開始 */
	for (j=0; j<4; j++) { /* 初始值j=0開始 */
	printf("%5d ", random(x));
	}
	printf("\n");
	}
	system("PAUSE");
	return 0;
	}

view raw TQCplus_C_708 hosted with ❤ by GitHub

	#include <stdio.h>
	#include <stdlib.h>
	#include <math.h>
	int main ()
	{
	double result;
	double a, b, c, d, e, f;
	printf("請輸入a, b, c的值: ");
	scanf("%lf %lf %lf", &a, &b, &c);
	printf("請輸入d, e, f的值: ");
	scanf("%lf %lf %lf", &d, &e, &f);
	result = fabs(a) * floor(b) + pow(c, d) * sqrt(e) + log10(f);
	printf("result = %f", result);
	system("PAUSE");
	return 0;
	}

view raw TQCplus_C_709 hosted with ❤ by GitHub

	/* TQC+ C - 710 */
	#include <stdio.h>
	#include <stdlib.h>
	/* 若沒有定義Knum, 則加以定義為1000 */
	#ifndef Knum
	#define Knum 1000
	#endif
	/* 將Knum解除定義, 之後再定義為200 */
	#undef Knum
	#define Knum 200
	int main ()
	{
	/* 印出最後的Knum值 */
	printf("Knum = %d\n", Knum);
	/* 下列的變數d和i共用8個Bytes, 不是12個Bytes */
	union dataType {
	double d;
	int i;
	};
	union dataType dT; /* 修改dataType的宣告 */
	printf("請輸入d的變數值: ");
	/* 將兩變數分開輸入和顯示 */
	scanf("%lf", &dT.d);
	printf("%lf\n", dT.d);
	/* 印出dT變數中的d和i */
	printf("請輸入i的變數值: ");
	scanf("%d", &dT.i);
	printf("%d\n", dT.i);
	system("PAUSE");
	return 0;
	}

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TQC+ C 試題總覽：LINK
Github 備份：LINK


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