【HDOJ】1341 Simple Computers

注意PC要与31.

 #include <cstdio>
 #include <cstring>
 #include <cstdlib>

 #define MAXN 40
 #define MAXL 10

 char mem[MAXN][MAXL];
 char ans[MAXL];

 int getv(char s[], int i, int j) {
    int ret = ;

    while (i < j) {
        ret = (ret<<) + s[i] - '';
        ++i;
    }

    return ret;
 }

 void store(char s[], unsigned char acc) {
     int i = ;
     int v = (int)acc;
     int mask = 0x80;

     for (i=; i<; ++i) {
         if (v & mask) {
             s[i] = '';
         } else {
             s[i] = '';
         }
         mask >>= ;
     }
     s[i] = '\0';
 }

 void solve() {
     int op, addr;
     int tmp;
     bool nhalt = true;
     unsigned char acc = ;
     int pc = ;

     while (nhalt) {
         pc &= 0x1f;
         op = getv(mem[pc], , );
         addr = getv(mem[pc], , );
         ++pc;
         switch (op) {
         case :
             store(mem[addr], acc);
             break;

         case :
             tmp = getv(mem[addr], , );
             acc = (unsigned char) tmp;
             break;

         case :
             if (acc == )
                 pc = addr;
             break;

         case :
             break;

         case :
             --acc;
             break;

         case :
             ++acc;
             break;

         case :
             pc = addr;
             break;

         case :
             nhalt = false;
             break;

         default:
             break;
         }
     }

     store(ans, acc);
 }

 int main() {
     int i;

 #ifndef ONLINE_JUDGE
     freopen("data.in", "r", stdin);
 #endif

     while () {
         i = ;
         if (scanf("%s", mem[i++]) == EOF)
             break;
         while (i < )
             scanf("%s", mem[i++]);
         solve();
         printf("%s\n", ans);
     }

     return ;
 }