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C program for Operator Precedence

Monday, March 29th, 2010  »  Posted By Ranjith  »  Total 2 Comments

C program for Operator Precedence #include<stdio.h> #include<iostream.h> #include<conio.h> #include<string.h> #include<ctype.h> void main() { int i=0,j=0,k=0,p[10]; char name[20]; char key[20]={’(‘,’)',’&’,'%’,'^’,'*’,'/’,'+’,'-’,'|’,';’}; clrscr(); textcolor(2); cprintf("—Operator Precedence—–\n"); cprintf("\nEnter the expression:"); scanf("%s",&name); cprintf("\n—output—-\n"); for(i=0;i<20;i++) { for(j=0;j<strlen(name);j++) { char c; c=tolower(name[j]); if(!isalpha(c)&&!isdigit(c)) { if(key[i]==c) { printf("\n %c is executed %d(%c %c %c)\n",c,k++,tolower(name[j-1]),c,tolower(name[j+1])); } } } } getch(); }

C program for Macro Processor

Monday, March 29th, 2010  »  Posted By Ranjith  »  Total 1 Comment

C program for Macro Processor #include<stdio.h> #include<conio.h> #define getx1y1 printf("Enter the order of Ist Matrix:"); scanf("%d%d",&x1,&y1);   #define getx2y2 printf("Enter the order of IIst Matrix:"); scanf("%d%d",&x2,&y2);   #define inputa printf("Enter the value of a:"); for(i=0;i<x1;i++) for(j=0;j<y1;j++) scanf("%d",&a[i][j]);   #define inputb printf("Enter the value of b:"); for(i=0;i<x2;i++) for(j=0;j<y2;j++) scanf("%d",&b[i][j]);   #define addab for(i=0;i<x1;i++) { for(j=0;j<y1;j++) { [...]

C program for Lexical Analyzer

Monday, March 29th, 2010  »  Posted By Ranjith  »  Total 5 Comments

C program for Lexical Analyzer #include<iostream.h> #include<conio.h> #include<stdio.h> #include<string.h> #include<stdlib.h> #include<ctype.h> struct pgm { char line[20]; } s[100]; void check(char s[]) { cout<<"\n"; if(!strcmpi(s,"If")) { cout<<"keyword:If"; return; } if(!strcmpi(s,"Then")) { cout<<"keyword:Then"; return; } if(!strcmpi(s,"Else")) { cout<<"keyword:else"; return; } if(!strcmpi(s,"[END]")) { return; } cout<<"expression:"<<s; } void main() { char t[20]; int i=0,j=0,k=0; clrscr(); cout<<"\n\n enter the [...]

C progrma for First Come First Serve Algorithm

Monday, March 29th, 2010  »  Posted By Ranjith  »  Total 5 Comments

C progrma for First Come First Serve Algorithm #include<stdio.h> #include<math.h> #include<conio.h> void main() { clrscr(); int p[20],b[20],w[20],t[20],i,v,n,at; int wt=0; float tw,tr; printf("Enter the number of process : "); scanf("%d",&n); printf("enter CPU burst time : "); for(i=1;i<=n;i++) { scanf("%d",&b[i]); t[1]=b[1]; w[1]=0; at=t[1]; wt=w[1]; for(i=2;i<=n;i++) { t[i]=b[i]+t[i-1]; at=at+t[i]; w[i]=t[i-1]; wt=wt+w[i]; } } printf("process \t burst_time \t wait_time [...]

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