程序设计基础实验报告(4)

第1_2题

算法描述：

文本文件num1.txt和num2.txt中各有一组用空格分隔的整数，将num1.txt和num2.txt联合排序，并将结果保存在num3.txt中 源程序： no1_2.cpp

#include<fstream.h> #include<iostream.h> #include<stdlib.h> #include<strstrea.h>

int cmp(const void *m,const void *n); void main() { fstream inf1,inf2,outf; inf1.open("num1.txt",ios::in); if(!inf1) { cout<<"num1.txt can't open.\n"; abort(); } inf2.open("num2.txt",ios::in); if(!inf2) { cout<<"num2.txt can't open.\n"; abort(); } outf.open("num3.txt",ios::out); if(!outf) { cout<<"num3.txt can't open.\n"; abort(); } int array[40]={0}; int i=0; while(!inf1.eof()) { inf1>>array[i++]; } while(!inf2.eof()) { inf2>>array[i++]; }

qsort(array,i,sizeof(int),cmp); int j(0); while(i) { outf<<array[j++]; if(i!=1) outf<<' ';