- codeforces 282A (implementation)
- codeforces 158A (implementation)
- codeforces 118A (implementation,
- codeforces 96A (implementation，
- 【Codeforces】Codeforces Round #53
- 【Codeforces】Codeforces Round #53
- CodeForces | Codeforces Global R
- 【Codeforces】Codeforces Round #53
- 【Codeforces】Codeforces Round #53
- 【Codeforces】Codeforces Round #53
http://codeforces.com/problemset/problem/282/A
生词：
peculiar a.奇怪的
execute vt.处决，使生效
题面：
太水，不想说。
// codeforces
// 282A
// implementation
#include <iostream>
#include <string>
using namespace std;
int main() {
int n, val = 0;
cin >> n;
string s;
while (n--) {
cin >> s;
if (s == "X++" || s == "++X")
val++;
else
val--;
}
cout << val;
return 0;
}
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