CodeForces - 282A Bit++(물)

CodeForces - 282A
Bit++
Time Limit: 1000MS
 
Memory Limit: 262144KB
 
64bit IO Format: %I64d & %I64u
Submit Status
Description
The classic programming language of Bitland is Bit++. This language is so peculiar and complicated.
The language is that peculiar as it has exactly one variable, called x. Also, there are two operations:

Operation ++ increases the value of variable x by 1.

Operation -- decreases the value of variable x by 1.

A statement in language Bit++ is a sequence, consisting of exactly one operation and one variable x. The statement is written without spaces, that is, it can only contain characters "+", "-", "X". Executing a statement means applying the operation it contains.
A programme in Bit++ is a sequence of statements, each of them needs to be executed. Executing a programme means executing all the statements it contains.
You're given a programme in language Bit++. The initial value of x is 0. Execute the programme and find its final value (the value of the variable when this programme is executed).
Input
The first line contains a single integer n(1 ≤ n ≤ 150) — the number of statements in the programme.
Next n lines contain a statement each. Each statement contains exactly one operation (++ or --) and exactly one variable x (denoted as letter «X»). Thus, there are no empty statements. The operation and the variable can be written in any order.
Output
Print a single integer — the final value of x.
Sample Input
Input

1
++X

Output

1

Input

2
X++
--X

Output

0

Source
Codeforces Round #173 (Div. 2)
/제목:++는 자증 1을 나타내고 --자감 1을 나타낸다.
n개의 문자열을 주고 n개의 문자열의 마지막 계산 결과를 출력합니다.

#include
#include
#include
#include
using namespace std;
int judge(char *s)
{
	int l=strlen(s);
	for(int i=0;i