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#include <iostream>

using namespace std;

const int DoSum(const int from, const int to) {

if (from>to) return 0;

else if (from==to) {

cout << from << endl;

return from;

} else {

cout << from << " ";

return from+DoSum(from+1,to);

} }

int main() {

int x,y;

cout << "¤Á ªÁ¦Ûå ¬Ýî¦ÏÞ³´ª¹¬À: ";

cin >> x >> y;

int sum = (x<=y) ? DoSum(x,y) : DoSum(y,x);

cout << "³Éî = " << sum << endl;

} '

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#include <iostream>

using namespace std;

const int Sum(const int number) {

if (number < 1) return 0; else return number+Sum(number-1);

}

int main() {

cout << "³Éî = " << Sum(100) << endl;

return 0;

} Õ

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#include <iostream>

using namespace std;

int main() {

cout << "Enter a number: ";

int x=0;

cin >> x;

cout << "Sum = " << ((double)x*((double)x+1.0)/2.0) << endl;

return 0;

} d

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#include <iostream>

using namespace std;

const long long int

DoSum(const long long int from, const long long int to) {

if (from>to) return 0L;

else if (from==to) return from;

else {

long long int mid = (from+to)/2L;

return DoSum(from,mid)+DoSum(mid+1L,to);

} }

int main() {

cout << "¤Á ªÁ¦Ûå ¬Ýî¦ÏÞ³´ª¹¬À: ";

long long int x,y;

cin >> x >> y;

cout << "³Éî = " << ((x<=y) ? DoSum(x,y) : DoSum(y,x)) << endl;

return 0;

}

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3. †<Êú%7›e¦aÅ@“Ér6£§õ °ú .

template <class T> const T& Max(const T& a, const T& b) {

return a>b?a:b;

}

BoxH½¨›¸^‰\ @/ôÇ%7›e¦aÅ@:£¤ÃºoH6£§õ °ú . template <>

const Box& Max<Box>(const Box& a, const Box& b) {

return a.volume>b.volume?a:b;

}

4. void showBox(const Box& box) {

cout << "Maker = " << box.maker << endl;

cout << "Height = " << box.height << endl;

cout << "Width = " << box.width << endl;

cout << "Length = " << box.length << endl;

cout << "Volume = " << box.volume << endl;

}

void setVolume(Box& box) {

box.volume = box.height*box.width*box.length;

}

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double mass(double density, double volume);

double mass(double density);

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º š¸!Q–Ð`ç`¦6£§õ °ú s6 x½+Éúe”. void repeat(int count, const char * str);

void repeat(const char * str);

(c) †<Êú š¸!Q–Ð`ç`¦6 x½+Éúe”. int average(int a, int b);

double average(double a, double b);

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ºH6£§õ °ú .

void setArray(int* startArr, int* endArr,int val) {

for (int* p = startArr ; p<endArr ; p++) *p = val;

}

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Œ,Õª C\P\"f ©œH°úכ`¦o‡H†<ÊúH6£§õ °ú . double biggerOne(const double arr[],int size) {

if (size<=0)

{

std::cerr << "Wrong array size: " << size << endl;

throw size;

} else {

double bigger = arr[0];

for (int i=1 ; i<size ; i++) if (bigger<arr[i]) bigger = arr[i];

return bigger;

} }

7. (a) void igor(void);

(b) float tofu(int);

(c) double mpg(double, double);

(d) long summation(long[], int);

(e) double doctor(const char*);

(f) void ofcourse(Boss);

(g) char* plot(Map*);

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11. (a) char c=88; cout << c << endl;

(b) cout.put(char(88));

(c) cout << char(88) << endl;

(d) cout << (char)88 << endl;

12. cout << "Enter a number :";

unsigned int num = 0;

cin >> num;

int* arr = new int [num];

13. for (int num=1 ; num<=64 ; num*=2) cout << num << " ";

14. Fish* newFish = new Fish;

cout << "Enter kind :";

cin.getline(newFish->kind, 20);

15. double* pf = treacle;

cout << pf[0] << " and " << pf[9] << endl;