From dc1f0c4c0096013799416664894c5194dc7e1f52 Mon Sep 17 00:00:00 2001
From: Yuqian Yang <crupest@crupest.life>
Date: Fri, 28 Feb 2025 23:13:39 +0800
Subject: chore(store): move everything to store.

---
 works/life/2020-algorithm-contest/code/5.cpp | 133 ---------------------------
 1 file changed, 133 deletions(-)
 delete mode 100644 works/life/2020-algorithm-contest/code/5.cpp

(limited to 'works/life/2020-algorithm-contest/code/5.cpp')

diff --git a/works/life/2020-algorithm-contest/code/5.cpp b/works/life/2020-algorithm-contest/code/5.cpp
deleted file mode 100644
index 24d3fd6..0000000
--- a/works/life/2020-algorithm-contest/code/5.cpp
+++ /dev/null
@@ -1,133 +0,0 @@
-#include <iostream>
-#include <string>
-#include <vector>
-#include <cassert>
-
-enum class Op
-{
-    Add,
-    Sub,
-    Mul,
-    Div
-};
-
-struct OpInfo
-{
-    explicit OpInfo(Op op) : op(op), count(0) {}
-
-    Op op;
-    int count; // operand count
-};
-
-int main()
-{
-    std::string expr;
-    std::getline(std::cin, expr);
-
-    std::vector<int> operands;
-    std::vector<OpInfo> op_infos;
-
-    for (auto c : expr)
-    {
-        if (c == '+')
-        {
-            op_infos.emplace_back(Op::Add);
-        }
-        else if (c == '-')
-        {
-            op_infos.emplace_back(Op::Sub);
-        }
-        else if (c == '*')
-        {
-            op_infos.emplace_back(Op::Mul);
-        }
-        else if (c == '/')
-        {
-            op_infos.emplace_back(Op::Div);
-        }
-        else if (c == '(')
-        {
-            if (!op_infos.empty())
-                op_infos.back().count++;
-        }
-        else if (c >= '0' && c <= '9')
-        {
-            operands.push_back(c - '0');
-            op_infos.back().count++;
-        }
-        else if (c == ')')
-        {
-            const auto &info = op_infos.back();
-            if ((info.op == Op::Sub || info.op == Op::Div) && info.count != 2)
-            {
-                std::cerr << "Sub or Div Op has not 2 operands.";
-                return 1;
-            }
-
-            switch (info.op)
-            {
-            case Op::Add:
-            {
-                int r = 0;
-                for (int i = 0; i < info.count; i++)
-                {
-                    r += operands.back();
-                    operands.pop_back();
-                }
-                operands.push_back(r);
-                op_infos.pop_back();
-                break;
-            }
-            case Op::Sub:
-            {
-                int a = operands.back();
-                operands.pop_back();
-                int b = operands.back();
-                operands.pop_back();
-                operands.push_back(b - a);
-                op_infos.pop_back();
-                break;
-            }
-            case Op::Mul:
-            {
-                int r = 1;
-                for (int i = 0; i < info.count; i++)
-                {
-                    r *= operands.back();
-                    operands.pop_back();
-                }
-                operands.push_back(r);
-                op_infos.pop_back();
-                break;
-            }
-            case Op::Div:
-            {
-                int a = operands.back();
-                operands.pop_back();
-                int b = operands.back();
-                operands.pop_back();
-                operands.push_back(b / a);
-                op_infos.pop_back();
-                break;
-            }
-            default:
-                std::terminate();
-            }
-        }
-    }
-
-    if (operands.size() != 1)
-    {
-        std::cerr << "final operand count is not 1, but " << operands.size();
-        return 1;
-    }
-    if (!op_infos.empty())
-    {
-        std::cerr << "final op_info is not empty";
-        return 1;
-    }
-
-    std::cout << operands.front();
-
-    return 0;
-}
-- 
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