#include<iostream> #include<complex.h> #include <complex> #include <math.h> using namespace std; #define pi 3.14159265358979323846 int main() { file* stream; stream = fopen("4000-red.raw","rb"); unsigned char* image = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned char)); fread(image,4000*4000,sizeof(unsigned char),stream); unsigned char* image2 = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned char)); unsigned char* image3 = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned


这段 C++ 代码看起来是在进行文件读取和内存分配相关的操作。其中存在一些错误和不完整的部分: 1. `file* stream;` 应该为 `FILE* stream;` ,注意大小写。 2. 代码中对于 `image3` 的内存分配没有完成,缺少 `sizeof(unsigned char)` 的参数。 以下是修正后的代码示例: ```cpp #include <iostream> #include <complex.h> #include <complex> #include <math.h> #include <stdio.h> // 包含 fopen、fread 等函数所需的头文件 #define pi 3.14159265358979323846 int main() { FILE* stream; stream = fopen("4000-red.raw","rb"); if (stream == NULL) { std::cout << "Failed to open the file." << std::endl; return 1; } unsigned char* image = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned char)); fread(image, 4000 * 4000, sizeof(unsigned char), stream); unsigned char* image2 = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned char)); unsigned char* image3 = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned char)); // 在这里添加后续对分配的内存进行处理的代码 fclose(stream); free(image); free(image2); free(image3); return 0; } ``` 请问您是在学习文件操作和内存分配相关的知识,还是这段代码是您实际项目中的一部分,需要进一步完善其功能? [2024-11-02 18:16:35 | AI写代码神器 | 413点数解答]
- #include<iostream> #include<complex.h> #include <complex> #include <math.h> using namespace std; #define pi 3.14159265358979323846 int main() { file* stream; stream = fopen("4000-red.raw","rb"); unsigned char* image = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned char)); fread(image,4000*4000,sizeof(unsigned char),stream); unsigned char* image2 = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned char)); unsigned char* image3 = (unsigned char*)malloc(4000 * 4000 * sizeof(unsigned(413点数解答 | 2024-11-02 18:16:35)193
- 采用c++语言,实现如下功能: 实现古典密码中的移位密码和仿射密码,具体实现如下接口: c++接口: <<<<<移位密码>>>>> bool is_valid_s(unsinged char k) { 判断k是否为合理的密钥 } int encrypt_s(unsigned char* p, unsigned char k) { 密钥合法则返回1,且密文覆盖明文: 密钥不合法则返回0. } int decrypt_s(unsigned char* c, unsigned char k) { 密钥合法则返回1,且明文覆盖密文: 密钥不合法则返回0. } <<<<<仿射密码>>>>> bool in_valid_a(unsinged char a, unsigned char b) { 判断a,b是否为合理的密钥 } int encrypt_a(unsigned char* p, unsigned char a, unsigned char b) { 密钥合法则返回1,且密文覆盖明文: 密钥不合法则返回0. } int decrypt_a(unsigned char* c, unsign(812点数解答 | 2024-12-18 16:02:36)229
- int n = 3; int width1 = width * n; int height1 = height * n; unsigned char* image9 = (unsigned char*)malloc(sizeof(unsigned char) * width1*height1); for (int i = 0; i < height1; i++) { for (int j = 0; j < width1; j++) { int a = i /n; int b = j /n; image9[i * width1 + j] = image1[a * width + b ]; } } char result6[100] = "suofang.raw"; file* fp6 = fopen(result6, "wb"); fwrite(image9, sizeof(unsigned cha(348点数解答 | 2024-10-26 12:13:04)209
- #include<stdio.h> #include<malloc.h>//动态存储分配函数头文件 #include<math.h>//包含数学函数的文件 #include<string.h>//一个和字符串处理相关的头文件 #include<process.h>//包含用于和宏指令的作用声明 #define error 0 //宏定义 #define ok 1 #define over -2 #define listinitsize 20 #define listincrement 5 #define namelen 8 #define majorlen 20 #define init_n 3 typedef int status; //自定义类型语句 status i 等价于 int i typedef char statusc; typedef struct{ statusc number[10]; //学号 statusc name[namelen+1]; //姓名 statusc gender; //性别 statusc telephone[12]; //电话 st(1142点数解答 | 2024-11-07 19:08:54)153
- 快速排序:# include< iostream>using namespace std;# include< stdlib. h># include< time. h>const int n =10;const int min= 10;const int max=99;int getrand( int min, int max){return ( rand()%( max-min+1)+ min);}void set( int r[], int n){int i;for(i=0;i<n;i++)r[i]=getrand(min, max);}void show( int r[], int n){int i;for(i=0;i<n;i++)cout << r[i]<<" ";cout << endl;}int partition( int r[], int i, int j){//由你完成}void quicksort( int r[], int i, int j){//由你完成}int main(){srand( time(0));int a[n];set(a, n);cout<<"(710点数解答 | 2024-11-14 10:44:25)206
- 快速排序:# include< iostream>using namespace std;# include< stdlib. h># include< time. h>const int n =10;const int min= 10;const int max=99;int getrand( int min, int max){return ( rand()%( max-min+1)+ min);}void set( int r[], int n){int i;for(i=0;i<n;i++)r[i]=getrand(min, max);}void show( int r[], int n){int i;for(i=0;i<n;i++)cout << r[i]<<" ";cout << endl;}int partition( int r[], int i, int j){//由你完成}void quicksort( int r[], int i, int j){//由你完成}int main(){srand( time(0));int a[n];set(a, n);cout<<"(951点数解答 | 2024-11-14 10:46:29)201
- 快速排序:# include< iostream>using namespace std;# include< stdlib. h># include< time. h>const int n =10;const int min= 10;const int max=99;int getrand( int min, int max){return ( rand()%( max-min+1)+ min);}void set( int r[], int n){int i;for(i=0;i<n;i++)r[i]=getrand(min, max);}void show( int r[], int n){int i;for(i=0;i<n;i++)cout << r[i]<<" ";cout << endl;}int partition( int r[], int i, int j){//由你完成}void quicksort( int r[], int i, int j){//由你完成}int main(){srand( time(0));int a[n];set(a, n);cout<<"(472点数解答 | 2024-11-14 10:51:44)180
- using communication_protocols; using FTS_F02391A; using NLog; using ScottPlot.Plottable; using Sunny.UI; using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; using System.Windows.Forms; namespace 窗体界面设计 { public partial class FormHome : UIPage { private readonly DataLogger Log1;//波形图数据记录器 bool bViewSlide = false(562点数解答 | 2025-07-09 16:57:56)67
- #include<iostream> using namespace std;#include<stdlib.h>#include<time.h> const int n =10; const int min =10; const int max =99; int getrand(int min, int max) { return (rand() % (max - min +1) + min); void set(int r[], int n){ int i; for(i = 0; i< n; i++) r[i] = getrand(min,max); void show(int r[], int n) { int i; for (i = 0; i<n;i++) cout << r[i] << ""; cout << endl;}void sift(int r[],int m,int k){ } void heapsort(intr[], int n){ //由你完成 int main(){ srand(time(0)); int a[n]; set(a,n); cout <<"原序(417点数解答 | 2024-11-28 11:20:23)253
- 完善代码#include<reg51.h> #include <intrins.h> code unsigned char tab[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40}; unsigned char dspbuf[8] = {0,0,10,0,0,10,0,0}; unsigned char i,j,k; unsigned char dspbuf1[8] = {0,0,10,0,0,10,0,0}; code unsigned int yindiao[]={0,120,106,94,89,79,71,62,59, 56, 53, 50, 47, 44, 41, 38}; code unsigned int jiepai[]={0,523,587,659,698,784,880,988};(334点数解答 | 2024-11-25 18:12:57)148
- 告诉我那里错误#include<reg51.h> #include <intrins.h> code unsigned char tab[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40}; unsigned char dspbuf[8] = {0,0,10,0,0,10,0,0}; unsigned char i,j,k; unsigned char dspbuf1[8] = {0,0,10,0,0,10,0,0}; code unsigned int yindiao[]={0,120,106,94,89,79,71,62,59, 56, 53, 50, 47, 44, 41, 38}; code unsigned int jiepai[]={0,523,587,659,698,784,880,988(78点数解答 | 2024-11-25 18:13:58)150
- 修改代码#include <iostream> #include <string> #include <unordered_map> #include <ctime> #include <openssl/sha.h> #include <openssl/aes.h> #include <openssl/rand.h> #include <io.h> #include<process.h> #include <winsock2.h> // 处理可能未定义的socklen_t类型 #ifndef socklen_t typedef int socklen_t; #endif #define port 8080 #define otp_valid_time 120 // otp有效时间为2分钟 // 用户结构体 struct user { std::string username; std::string hashed_password; std::string otp; time_t otp_time; }; // 存储用户的哈希表 std::uno(465点数解答 | 2024-11-23 20:41:37)136