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bit.java
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29 lines (26 loc) · 836 Bytes
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import java.util.*;
public class bit {
public static void main(String args[]){
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
sc.nextLine();
String[] stat=new String[n];
for(int i=0;i<n;i++){
stat[i]=sc.nextLine().trim();
}
int x=0;
for(int i=0;i<stat.length;i++){
if(stat[i].equals("++X") || stat[i].equals("++x")){
++x;
} else if(stat[i].equals("--X") || stat[i].equals("--x")){
--x;
} else if(stat[i].equals("X++") || stat[i].equals("x++")){
x++;
} else if(stat[i].equals("X--") || stat[i].equals("x--")){
x--;
}
}
System.out.println(x);
sc.close();
}
}