72行代码做出来了

仰天长啸你爹驾到

2025-07-16 20:42:47

发布于：上海

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修改了十多次，老是忘记写大括号，没有在相应函数的命名空间里声明（早知道用万能头了）
以下是代码：
#include <iostream>
#include <string>
#include <limits>
#include <stdexcept>
#include <chrono>
#include <climits>
#include <cstdlib>

namespace InputUtils {
bool isInteger(const std::string& s) {
if(s.empty()) return false;
size_t i = (s[0] == '-') ? 1 : 0;
for(; i < s.size(); ++i) {
if(!isdigit(s[i])) return false;
}
return true;
}

int safeConvert(const std::string& s) {
    try {
        size_t pos = 0;
        long val = std::stol(s, &pos);
        if(pos != s.length() || val < INT_MIN || val > INT_MAX) {
            throw std::out_of_range("");
        }
        return static_cast<int>(val);
    } catch(...) {
        throw std::invalid_argument("");
    }
}

}

namespace MathUtils {
int safeAdd(int a, int b) {
if((b > 0 && a > INT_MAX - b) ||
(b < 0 && a < INT_MIN - b)) {
throw std::overflow_error("");
}
return a + b;
}
}

class Timer {
stdchronosteady_clocktime_point start;
public:
Timer() { start = stdchronosteady_clocknow(); }
long elapsed() const {
return stdchronoduration_caststd::chrono::microseconds(
stdchronosteady_clock::now() - start).count();
}
};

int main() {
Timer timer;
stdstring a_str, b_str;
stdcin >> a_str >> b_str;

if(!InputUtils::isInteger(a_str) || !InputUtils::isInteger(b_str)) {
    return EXIT_FAILURE;
}

try {
    int a = InputUtils::safeConvert(a_str);
    int b = InputUtils::safeConvert(b_str);
    int result = MathUtils::safeAdd(a, b);
    std::cout << result;
} catch(...) {
    return EXIT_FAILURE;
}

return EXIT_SUCCESS;

}

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#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <memory>
#include <stdexcept>
#include <type_traits>
#include <utility>
#include <tuple>
#include <array>
#include <deque>
#include <list>
#include <forward_list>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <stack>
#include <queue>
#include <iterator>
#include <numeric>
#include <limits>
#include <cmath>
#include <cctype>
#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <ctime>
#include <climits>
#include <cwchar>
#include <cwctype>
#include <exception>
#include <locale>
#include <codecvt>
#include <fstream>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <istream>
#include <ostream>
#include <sstream>
#include <streambuf>
#include <complex>
#include <valarray>
#include <bitset>
#include <regex>
#include <random>
#include <chrono>
#include <initializer_list>
#include <system_error>
#include <future>
#include <thread>
#include <mutex>
#include <condition_variable>
#include <atomic>
#include <cfenv>
#include <cinttypes>
#include <cstdint>
#include <cuchar>
#include <new>
#include <typeinfo>
#include <ratio>
#include <scoped_allocator>
#include <ciso646>
#include <clocale>
#include <cstdarg>
#include <cstdbool>
#include <cstddef>
#include <csetjmp>
#include <csignal>
#include <cfloat>
#include <cerrno>
class VM32{
    public:
        using u32=uint32_t;
        enum Registers{EAX,EBX,ESP,EIP,REG_COUNT};
        enum OpCode:u32{HALT=0x00000000,IN=0x0B000000,OUT=0x0C000000,ADD_REG=0x04000000};
        static constexpr size_t MEM_SIZE=16*1024*1024;
    VM32(){
        registers.fill(0);
        registers[ESP]=MEM_SIZE-4;
        memory.resize(MEM_SIZE,0);
    }
    void load_program(const std::vector<u32>&p,size_t s){
        if(s>memory.size())throw std::runtime_error("Program too large");
        for(size_t i=0;i<s;++i)memory[i]=p[i];
    }
    void run(){
        while(1){

1周前来自上海

请输入文本.

            u32 eip=registers[EIP];
            if(eip>=memory.size())throw std::runtime_error("EIP out of bounds");
            u32 inst=memory[eip];registers[EIP]+=1;
            u32 op=inst&0xFF000000;u32 args=inst&0x00FFFFFF;
            switch(op){
                case HALT:return;
                case IN:{u32 r=args&0xFF;if(r>=REG_COUNT)throw std::runtime_error("Invalid reg");u32 v;std::cin>>v;registers[r]=v;break;}
                case OUT:{u32 r=args&0xFF;if(r>=REG_COUNT)throw std::runtime_error("Invalid reg");std::cout<<registers[r]<<std::endl;break;}
                case ADD_REG:{u32 s=(args>>16)&0xFF;u32 d=args&0xFF;if(s>=REG_COUNT||d>=REG_COUNT)throw std::runtime_error("Invalid reg");registers[d]+=registers[s];break;}
                default:
                    throw std::runtime_error("Invalid opcode");
            }
        }
    }
    private:
        std::array<u32,REG_COUNT>registers;
        std::vector<u32>memory;
};
int main(){
    try{
        VM32 vm;
        std::vector<VM32::u32>p={0x0B000000|VM32::EAX,0x0B000000|VM32::EBX,0x04000000|(VM32::EBX<<16)|VM32::EAX,0x0C000000|VM32::EAX,0x00000000};
        vm.load_program(p,5);vm.run();
    }catch(const std::exception&e){
        std::cerr<<"VM Error: "<<e.what()<<std::endl;
        return 1;
    }
    return 0;
}

真是太逊了

1周前来自上海

仰天长啸你爹驾到
哈哈哈哈哈AI太好用了，不过我说的问题AI没发觉，问了他好几遍全是错的代码，飞鸿植物（1字与4字）AI，不好用

2025-10-10 来自上海
0
仰天长啸你爹驾到
我直接复制的，结果出问题了，显示错误

2025-07-16 来自上海
0