return(s->top==-1); void push(SQ *S,char *c) if(S->top==19) printf("over flow\n"); else S->top++; copystr(c,S->sS->top); char *pop(SQ *S) if(ifempty(S)) printf("over flow!\n"); return(NULL); else return(S->sS->top--); int judge(char *c) if(c1=='\0...
C语言实现逆波兰式实例萌面**超人 上传37KB 文件格式 pdf char char函数 代码如下:#include<stdio>#include<string> typedef struct{char s[20][20];int top;}SQ; void copystr(char *a,char *b){ int i=0; do { b[i]=a[i]; i++; } while(a[i]!=’\0′); b[i]=’\0′;}...
int calculate(char *c) { sq rest,read; int i,re; voidsq(&rest); voidsq(&read); for(i=0;c[i]!='\0';i++) pushsq(&read,c[i]); for(;read.top>=2;) { for(;read.top>=2;) { if(just(read.c[read.top])==0&&just(read.c[read.top-1])==1&&just(read.c[read.top-2...
#include<stdio.h>intmain(void){inttop=-1;chars[25],temp;//栈的大小根据需要更改,或者可以用内存分配来解决while((temp=getchar())!='\n') {if(temp>='A'&&temp<='Z'||temp>='a'&&temp<='z'||temp>='0'&&temp<='9'||temp=='.')//包含数字表达式和字母表达式,支持小数printf("%c",...