UVa/10033 - Interpreter/E.c

   1 #include <stdio.h>
   2
   3 int ram[1000];
   4 int r[10];
   5 int i,ip,a,b,c;
   6
   7 main(){
   8    while (1 == scanf("%d",&ram[i++])){}
   9    for (i=1;;i++){
  10       a = ram[ip]/100;
  11       b = ram[ip]/10%10;
  12       c = ram[ip]%10;
  13       ip++;
  14       if (a == 1) break;
  15       if (a == 2) r[b] = c;
  16       else if (a == 3) r[b] = (r[b]+c)%1000;
  17       else if (a == 4) r[b] = (r[b]*c)%1000;
  18       else if (a == 5) r[b] = r[c];
  19       else if (a == 6) r[b] = (r[b]+r[c])%1000;
  20       else if (a == 7) r[b] = (r[b]*r[c])%1000;
  21       else if (a == 8) r[b] = ram[r[c]];
  22       else if (a == 9) ram[r[c]] = r[b];
  23       else if (a == 0 && r[c] !=0) ip = r[b];
  24    }
  25    printf("%d\n",i);
  26 }