pvjc20/du4/program.c

63 lines
1.1 KiB
C

#include <stdio.h>
#include<string.h>
#include<stdlib.h>
char* compactString(char *src,int leng) {
char *new_str = (char*)calloc(leng+1,sizeof(char));
int k=0;
for(int i=0;i<leng;i++){
if(src[i]!=' '){
new_str[k] = src[i];
k++;
}
}
return new_str;
}
double operation(double first,double second,char c){
if(c=='*'){
return first*second;
}
else if(c =='-'){
return first-second;
}
else if(c=='/'){
return first/second;
}
return first+second;
}
int main()
{
char str[100];
memset(str,0,100);
fgets(str,100,stdin);
char *new_str = compactString(str,strlen(str));
//printf("%s\n",new_str);
double first =-5,second =-5,res=-5;
char c='E';
sscanf(new_str,"%lf%c%lf%*[=]%lf",&first,&c,&second,&res);
// printf("%lf %lf %lf",first,second,res);
if(c=='E'||first==-5||second==-5||res==-5){
printf("CHYBA\n");
return 0;
}
double my_res = operation(first,second,c);
if(my_res==res){
printf("OK\n");
}
else{
printf("ZLE\n");
}
return 0;
}