Pagini recente » Cod sursa (job #70490) | Cod sursa (job #3240173) | Cod sursa (job #3120458) | Cod sursa (job #737401) | Cod sursa (job #60807)
Cod sursa(job #60807)
#include<stdio.h>
#include<string.h>
char expr[1001],aux[1001],stiva[1001],pol[1001],c;
int l,i,j,top,n,eval[1000];
int prec(char op)
{
if(op=='+') return 1;
if(op=='*') return 2;
if(op=='-') return 3;
return 0;
}
int main()
{
FILE *f,*g;
f=fopen("bool.in","r");
g=fopen("bool.out","w");
fgets(aux,1000,f);
l=strlen(aux);
while(i<l-1)
{ if(aux[i]==' ')i++;
else if(aux[i]=='T'&&aux[i+1]=='R'){expr[j]='1';i=i+4;j++;}
else if(aux[i]=='F'&&aux[i+1]=='A'){expr[j]='0';i=i+5;j++;}
else if(aux[i]=='O'&&aux[i+1]=='R'){expr[j]='+';i=i+2;j++;}
else if(aux[i]=='A'&&aux[i+1]=='N'){expr[j]='*';i=i+3;j++;}
else if(aux[i]=='N'&&aux[i+1]=='O'){expr[j]='-';i=i+3;j++;}
else {expr[j]=aux[i];i++;j++;}
}
l=strlen(expr);
strcpy(aux,"");
j=0;top=-1;i=0;
while(i<l)
{ if(expr[i]>=65||expr[i]=='1'||expr[i]=='0')
{pol[j]=expr[i];j++;i++;}
else
if(expr[i]=='('){top++;stiva[top]='(';i++;}
else
if(expr[i]==')')
{ while(stiva[top]!='(')
{pol[j]=stiva[top];j++;top--;}
top--;
i++;
}
else
if(stiva[top]=='('){top++;stiva[top]=expr[i];i++;}
else
if(prec(expr[i])>prec(stiva[top]))
{ top++;stiva[top]=expr[i];i++;}
else
{ pol[j]=expr[i];i++;j++;}
}
while(top>=0)
{ pol[j]=stiva[top];top--;}
l=strlen(pol);
fscanf(f,"%d%c",&n,&c);
for(i=1;i<=n;i++)
{ fscanf(f,"%c",&c);
for(j=0;j<=l;j++)
{ if(pol[j]==c) pol[j]=pol[j]-'A'+'a';
else if(pol[j]==c-'A'+'a')pol[j]=pol[j]-'a'+'A';
}
top=-1;
for(j=0;j<=l;j++)
if(pol[j]>='a'){top++;eval[top]=1;}
else if(pol[j]>='A'){top++;eval[top]=0;}
else if(pol[j]=='1'){top++;eval[top]=1;}
else if(pol[j]=='-') eval[top]=1-eval[top];
else if(pol[j]=='*') { eval[top-1]*=eval[top];top--;}
else if(pol[j]=='+') { eval[top-1]=eval[top]+eval[top-1]-eval[top]*eval[top-1];top--;}
fprintf(g,"%d",eval[0]);
}
fprintf(g,"\n");
fcloseall();
return 0;
}