coderforce 282A Bit++
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模拟水题。。。。。
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <math.h>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <vector>
#include <string>
#include <iostream>
#include <algorithm>
using namespace std;
#define ll long long
#define ls rt<<1
#define rs ls1
#define lson l,mid,ls
#define rson mid+1,r,rs
#define middle (l+r)>>1
#define eps (1e-9)
#define type int
#define clr_all(x,c) memset(x,c,sizeof(x))
#define clr(x,c,n) memset(x,c,sizeof(x[0])*(n+1))
#define MOD 1000000007
#define inf 0x3f3f3f3f
#define pi acos(-1.0)
#define M 200000 +5
int main(){
int n,i;char s[5];
while(~scanf("%d",&n)){
i=0;
while(n--){
scanf("%s",s);
if(s[0]=='-') {--i;}
else if(s[0]=='+'){++i;}
else if(s[2]=='-'){i--;}
else if(s[2]=='+'){i++;}
}
printf("%d\n",i);
}
return 0;
}
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