/
1155.java
executable file
·91 lines (85 loc) · 1.58 KB
/
1155.java
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import java.io.*;
public class AOJ1155 {
static char[] key = new char[100];
static int[] vari = new int[3];
static int idx;
static int cnt;
static int formula(){
if(key[idx]=='0'||key[idx]=='1'||key[idx]=='2'){
return (int)key[idx]-'0';
}
else if(key[idx]=='P'){
return vari[0];
}
else if(key[idx]=='Q'){
return vari[1];
}
else if(key[idx]=='R'){
return vari[2];
}
else if(key[idx]=='-'){
idx++;
int tmp = formula();
return 2-tmp;
}
else if(key[idx]=='('){
idx++;
int tmp1=formula();
idx++;
int op = key[idx];
idx++;
int tmp2 =formula();
idx++;
if(op=='*'){
if(tmp1==2&&tmp2==2){
return 2;
}
else if(tmp1>=1&&tmp2>=1){
return 1;
}
else{
return 0;
}
}
else if(op=='+'){
if(tmp1==0&&tmp2==0){
return 0;
}
else if(tmp1==2||tmp2==2){
return 2;
}
else{
return 1;
}
}
}
return -100;
}
public static void main(String[] args) throws IOException {
BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
while(true){
String a = stdIn.readLine();
key = a.toCharArray();
if(key[0]=='.'){
return;
}
idx=0;
cnt=0;
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
for(int k=0;k<3;k++){
vari[0]=i;
vari[1]=j;
vari[2]=k;
idx=0;
int result=formula();
if(result==2){
cnt++;
}
}
}
}
System.out.println(cnt);
}
}
}