question:дай инструкцию по компиляции программы на dosbox с linux ubuntu 22.04 так же напиши, как ее запускать #include <stdio.h> #include <stdlib.h> #include <ctype.h> #include <stdbool.h> #include <string.h> #include <unistd.h> #include <fcntl.h> typedef struct Context { size_t shiftCount; bool isNegShift; FILE *currFile; FILE *tempFile; char tempByte; bool isEnd; } Context; static char Usage[30]; void openFiles(Context *ctx, char **argv) { FILE* file = fopen(argv[1], "rb"); if (file == NULL) { fprintf(stderr, "No such file or directory.n%s", Usage); exit(EXIT_FAILURE); } fseek (file, 0, SEEK_END); size_t size = ftell(file); if (size == 0) { fprintf(stderr, "File is empty.n%s", Usage); exit(EXIT_FAILURE); } FILE* tmpFile = fopen("temp.file", "wb"); if (tmpFile == NULL) { fprintf(stderr, "Failed to create temp file.n%s", Usage); exit(EXIT_FAILURE); } ctx->currFile = file, ctx->tempFile = tmpFile; } void rewriteFile(Context *ctx, char **argv) { FILE* file = fopen(argv[1], "wb"); if (file == NULL) { fprintf(stderr, "No such file or directory.n%s", Usage); exit(EXIT_FAILURE); } FILE* tmpFile = fopen("temp.file", "rb"); if (tmpFile == NULL) { fprintf(stderr, "Failed to create temp file.n%s", Usage); exit(EXIT_FAILURE); } ctx->currFile = file, ctx->tempFile = tmpFile; size_t bRead = 0; char buff[4096] = {0}; while ((bRead = fread(buff, 1, 4096, ctx->tempFile)) > 0) { for (size_t i = 0; i < bRead; i++) { fwrite(&buff[i], 1, 1, ctx->currFile); } } fflush(ctx->currFile); fclose(ctx->currFile); fclose(ctx->tempFile); } void getTempByte(Context *ctx) { if (ctx->isNegShift == true) { fseek(ctx->currFile, 0, SEEK_SET); uint result = fread(&ctx->tempByte, 1, 1, ctx->currFile); if (result == 0) { fprintf(stderr, "reading first byte failed."); exit(EXIT_FAILURE); } fseek(ctx->currFile, 0, SEEK_SET); } else { fseek(ctx->currFile, -1, SEEK_END); uint result = fread(&ctx->tempByte, 1, 1, ctx->currFile); if (result == 0) { fprintf(stderr, "reading last byte failed."); exit(EXIT_FAILURE); } fseek(ctx->currFile, 0, SEEK_SET); } } uint getShiftValue(char *str) { uint res = 0; while (*str && isdigit(*str)) { res = res * 10 + (*str - '0'); (str)++; } if (!isdigit(*str) && *str != '0') { res = 10; } return res; } void circularShift(char* buff, size_t size, Context *ctx, size_t count) { size_t bitShift = ctx->shiftCount; char *temp = (char*)calloc(size, 1); memcpy(temp, buff, size); for (size_t i = 0; i < size; i++) { uint index = i; unsigned char byte = temp[index]; unsigned char shifted_byte = 0; uint index_neighbor = ctx->isNegShift ? (index + 1) % size : (index + size - 1) % size; unsigned char byte_neighbor = temp[index_neighbor]; if (ctx->isNegShift == true) { shifted_byte = (byte << bitShift) | (byte_neighbor >> (8 - bitShift)); if (i == size - 1 && ctx->isEnd) { shifted_byte = byte << bitShift | (ctx->tempByte >> (8 - bitShift)); } } else { shifted_byte = (byte >> bitShift) | (byte_neighbor << (8 - bitShift)); if (i == 0 && count == 0) { shifted_byte = byte >> bitShift | (ctx->tempByte << (8 - bitShift)); } } buff[index] = shifted_byte; fwrite(&shifted_byte, 1, 1, ctx->tempFile); } ctx->tempByte = temp[ctx->isNegShift ? size - 1 : 0]; free(temp); } void shiftBites(Context *ctx) { char buff[4096] = {0}; size_t bRead = 0, count = 0; while ((bRead = fread(buff, 1, 4096, ctx->currFile)) > 0) { if (bRead > 0 && bRead < 4096) { ctx->isEnd = true; } circularShift(buff, bRead, ctx, count); count++; } fflush(ctx->tempFile); fclose(ctx->tempFile); fclose(ctx->currFile); } void readBitesFromFile(FILE *file) { //debug func for read bites; int byte; while ((byte = fgetc(file)) != EOF) { for (int i = 7; i >= 0; i--) { printf("%d", (byte >> i) & 1); } printf(" "); } printf("n"); } void readBitesFromByte(char byte) { for (int i = 7; i >= 0; i--) { printf("%d", (byte >> i) & 1); } printf(" "); printf("n"); } void ruleCheck(Context *ctx, int argc, char **argv) { if (argc != 3) { fprintf(stderr, argc > 3 ? "Too many args.n%s" : "Too few args.n%s", Usage); exit(EXIT_FAILURE); } if (argv[2][0] == '-') { ctx->isNegShift = true; (argv[2])++; } uint val = getShiftValue(&argv[2][0]); if (val > 8) { fprintf(stderr, "shiftCount value must be between -8 and 8.n%s", Usage); exit(EXIT_FAILURE); } ctx->shiftCount=val; } int main(int argc, char **argv) { Context ctx = {0}; sprintf(Usage, "Usage: %s file.any shiftCount", argv[0]); ruleCheck(&ctx, argc, argv); openFiles(&ctx, argv); getTempByte(&ctx); shiftBites(&ctx); rewriteFile(&ctx, argv); remove("temp.file"); fprintf(stderr, "Success!.n"); exit(EXIT_SUCCESS); }

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question:So I need a good title for angshuman mukherjee's interview that I drafted. He is the country head of siegwerk bangladesh and so the focus of the interview will be business-focused of the packaging industry in bangladesh. Based on the questions below, please draft some concise appropriate headlines. 1. What are your thoughts on the current situation of the packaging ink industry in Bangladesh? 2. How do you envision the packaging ink industry in Bangladesh evolving over the next decade, with regards to safety ad sustainability? 3. What are some of the challenges faced by the industry in incorporating safe and sustainable practices, and how can we overcome them? 4. To what extent do consumer preferences drive the shift toward sustainable and safe packaging and inks in the packaging ink industry? 5. Can you discuss the importance of education and awareness campaigns in promoting safe and sustainable practices within the industry and among consumers? 6. What opportunities do you see for both local and international companies within Bangladesh’s growing packaging ink market? 7. As the packaging ink industry in Bangladesh continues to grow, what advice would you give to companies entering the market in terms of safe and sustainable practices?