实验3

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <windows.h>
#define N 80

void print_text(int line, int col, char text[]);  
void print_spaces(int n);  
void print_blank_lines(int n);  

int main() {
    int line, col, i;
    char text[N] = "hi, April~";
    
    srand(time(0)); 
    for(i = 1; i <= 10; ++i) {
        line = rand() % 25;
        col =  rand() % 80;
        print_text(line, col, text);
        Sleep(1000);  
    }
    
    return 0; 
}


void print_spaces(int n) {
    int i;
    
    for(i = 1; i <= n; ++i)
        printf(" ");
}


void print_blank_lines(int n) {
    int i;
    
    for(i = 1; i <= n; ++i)
        printf("\n");
 } 

void print_text(int line, int col, char text[]) {
    print_blank_lines(line-1);  
    print_spaces(col-1);            
    printf("%s", text);       
}

#include <stdio.h>
long long fac(int n); 

int main() {
    int i, n;

    printf("Enter n: ");
    scanf("%d", &n);

    for (i = 1; i <= n; ++i)
        printf("%d! = %lld\n", i, fac(i));

    return 0;
}

long long fac(int n) {
    static long long p = 1;

    p = p * n;

    return p;
}

#include <stdio.h>
int func(int, int);        

int main() {
    int k = 4, m = 1, p1, p2;

    p1 = func(k, m);    
    p2 = func(k, m);    
    printf("%d, %d\n", p1, p2);

    return 0;
}

int func(int a, int b) {
    static int m = 0, i = 2;

    i += m + 1;
    m = i + a + b;

    return m;
}

#include <stdio.h>
long long func(int n); 

int main() {
    int n;
    long long f;

    while (scanf("%d", &n) != EOF) {
        f = func(n); 
        printf("n = %d, f = %lld\n", n, f);
    }

    return 0;
}

int long long func(int n){
    
}

#include <stdio.h>
int func(int n, int m);

int main() {
    int n, m;

    while(scanf("%d%d", &n, &m) != EOF)
        printf("n = %d, m = %d, ans = %d\n", n, m, func(n, m));
    
    return 0;
}

#include <stdio.h>
double mypow(int x, int y);  

int main() {
    int x, y;
    double ans;
    
    while(scanf("%d%d", &x, &y) != EOF) {
        ans = mypow(x, y);        
        printf("%d的%d次方: %g\n\n", x, y, ans);
    }
    return 0;
} 

#include <stdio.h>
#include <math.h>
long func(long s);   

int main() {

    long s, t;

    printf("Enter a number: ");
    while (scanf("%ld", &s) != EOF) {
        t = func(s);
        printf("new number is: %ld\n\n", t);
        printf("Enter a number: ");
    }

    return 0;
}