Code
제출 날짜
@5/28/2021
메모리
2024 KB
시간
0 ms
#include <iostream>
#include <vector>
std::string inp;
std::vector<int> v;
void io_faster()
{
std::ios_base::sync_with_stdio(false);
std::cin.tie(0);
std::cout.tie(0);
}
void input()
{
io_faster();
std::cin >> inp;
}
void solve()
{
int i = -1, tmp = 0, v_size = 0, fl = 1, ans, size = inp.size();
while(++i <= size)
{
if (i == size)
{
if (fl)
{
v.push_back(tmp);
v_size++;
}
else
v[v_size - 1] += tmp;
break;
}
if (isdigit(inp[i]))
{
tmp*=10;
tmp += (inp[i] - '0');
}
else if (inp[i] == '+' || inp[i] == '-')
{
if (fl) // '-'
{
v.push_back(tmp);
v_size++;
}
else
v[v_size - 1] += tmp;
tmp = 0;
if (inp[i] == '+')
fl = 0;
else
fl = 1;
}
}
ans = v[0];
for (int i = 1 ; i < v_size ; i++)
ans -= v[i];
std::cout << ans;
}
int main()
{
input();
solve();
return (0);
}
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