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Here is my solution:
#include <stdio.h> #include <stdlib.h> #include <string.h> #include<assert.h> #define MAX_CHARACTERS 1005 #define MAX_PARAGRAPHS 5 char* kth_word_in_mth_sentence_of_nth_paragraph(char**** document, int k, int m, int n) { return document[n-1][m-1][k-1]; } char** kth_sentence_in_mth_paragraph(char**** document, int k, int m) { return (char**)document[m-1][k-1]; } char*** kth_paragraph(char**** document, int k) { //return (char***)docum[k-1]; return (char***)document[k-1]; } char**** get_document(char* text) { char**** docum; docum = malloc( (sizeof (char***))); docum[0] = malloc( (sizeof (char**))); docum[0][0] = malloc( (sizeof (char*))); docum[0][0][0] = malloc( (sizeof (char))); int p = 0; int i=0,s=0, w=0, l=0; while(p<=5){ if(text[i] == '\0'){ p=6;//break the loop } if(((text[i] >= 'A') & (text[i] <= 'z')) | (text[i] == ' ') | (text[i] == '.') ){ docum[p][s][w] = realloc(docum[p][s][w], sizeof (char) * l+1); docum[p][s][w][l] = text[i]; l++; } if(text[i] == ' '){ docum[p][s][w][l-1] = '\0'; w++; l=0; docum[p][s] = realloc(docum[p][s], (sizeof (char*) * w+1)); docum[p][s][w] = malloc( (sizeof (char))); } if(text[i] == '.'){ docum[p][s][w][l-1] = '\0'; s++; w=0; l=0; docum[p] = realloc(docum[p], (sizeof (char**) * s+1)); docum[p][s] = malloc( (sizeof (char*) )); docum[p][s][0] = malloc( (sizeof (char))); } if(text[i] == '\n'){ p++; s=0; w=0; l=0; docum = realloc(docum, sizeof (char***) * p+1); docum[p] = malloc((sizeof (char**) )); docum[p][0] = malloc( (sizeof (char*) )); docum[p][0][0] = malloc( (sizeof (char))); } i++; } return (char****)docum; } char* get_input_text() { int paragraph_count; scanf("%d", ¶graph_count); char p[MAX_PARAGRAPHS][MAX_CHARACTERS], doc[MAX_CHARACTERS]; memset(doc, 0, sizeof(doc)); getchar(); for (int i = 0; i < paragraph_count; i++) { scanf("%[^\n]%*c", p[i]); strcat(doc, p[i]); if (i != paragraph_count - 1) strcat(doc, "\n"); } char* returnDoc = (char*)malloc((strlen (doc)+1) * (sizeof(char))); strcpy(returnDoc, doc); return returnDoc; } void print_word(char* word) { printf("%s", word); } void print_sentence(char** sentence) { int word_count; scanf("%d", &word_count); for(int i = 0; i < word_count; i++){ printf("%s", sentence[i]); if( i != word_count - 1) printf(" "); } } void print_paragraph(char*** paragraph) { int sentence_count; scanf("%d", &sentence_count); for (int i = 0; i < sentence_count; i++) { print_sentence(*(paragraph + i)); printf("."); } } int main() { char* text = get_input_text(); char**** document = get_document(text); int q; scanf("%d", &q); while (q--) { int type; scanf("%d", &type); if (type == 3){ int k, m, n; scanf("%d %d %d", &k, &m, &n); char* word = kth_word_in_mth_sentence_of_nth_paragraph(document, k, m, n); print_word(word); } else if (type == 2){ int k, m; scanf("%d %d", &k, &m); char** sentence = kth_sentence_in_mth_paragraph(document, k, m); print_sentence(sentence); } else{ int k; scanf("%d", &k); char*** paragraph = kth_paragraph(document, k); print_paragraph(paragraph); } printf("\n"); } }
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Querying the Document
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Here is my solution: