Merge pull request #101 from Sprinter05/main

Mas ejercicios para el Boletín 4

docs/code/Boletin_4/Ejercicio_08.c

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: 2024 Sprinter05
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+// Libraries
+#include <stdio.h>
+#define N 10
+
+int main(){
+    // Define variables and ask for parameters
+    int nums[N], guess, lGuess, uGuess;
+    printf("\nInput an array of 10 elements by pressing Enter after each element: ");
+    for(int i=0; i<10; i++){
+        scanf("%d", &nums[i]);
+    }
+    // Input guess
+    printf("\nWhat number do you want to find?: ");
+    scanf("%d", &guess);
+    // Lower bound
+    for(int i=0; i<N; i++){
+        if(nums[i] == guess){
+            lGuess = i;
+            break;
+        }
+    }
+    // Upper bound
+    for(int i=N; i>=0; i--){
+        if(nums[i] == guess){
+            uGuess = i;
+            break;
+        }
+    }
+    // Print solutions
+    printf("\nLower bound solution: %d", lGuess);
+    printf("\nUpper bound solution: %d", uGuess);
+    printf("\n");
+}

docs/code/Boletin_4/Ejercicio_11.c

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: 2024 Sprinter05
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+// Libraries
+#include <stdio.h>
+
+// Sum all the elements of the array using recursion
+int arraySum(int n, int sumNums[n], int loops, int accum){
+    if (loops == 0){return accum;} else{
+        accum+=sumNums[n-loops];
+        loops--;
+        arraySum(n, sumNums, loops, accum);
+    }
+}
+
+int main(){
+    // Define variables and ask for parameters
+    int n = 10;
+    int toSum[n], accum = 0, loops = n;
+    int result;
+    printf("Input the 10 numbers for the array separated by Enter:\n");
+    for(int i=0; i<10; i++){
+        scanf("%d", &toSum[i]);
+    }
+    // Recursion fun starts here
+    result = arraySum(n, toSum, loops, accum);
+    // Print result
+    printf("\nThe result of the sum is %d\n", result);
+    return 0;
+}

docs/code/Boletin_4/Ejercicio_27.c

@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: 2024 Sprinter05
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+// Libraries
+#include <stdio.h>
+#define N 100
+
+// Count the amount of characters in the string
+void countString(char toCount[N]){
+    int count = 0;
+    for(int i=0; toCount[i]!='\0'; i++){
+        count++;
+    }
+    printf("Word %s has %d characters\n", toCount, count);
+}
+
+// Separate the string and fix multiple separators in the string by ignoring them 
+void separateString(char toSplit[N]){
+    char splitted[N][N];
+    int count=0, row=0, column=0;
+    while(toSplit[count] != '\n'){
+        if(toSplit[count] == ' ' || toSplit[count] == ',' || toSplit[count] == '.'){
+            splitted[row][column] = '\0';
+            column = 0;
+            if (toSplit[count-1] != ' ' && toSplit[count-1] != ',' && toSplit[count-1] != '.'){row++;}
+        } else {
+            splitted[row][column] = toSplit[count];
+            column++;
+        }
+        count++;
+    }
+    for(int i=0; splitted[i][0] != '\0'; i++){
+        countString(splitted[i]);
+    }
+}
+
+int main(){
+    // Define variables and ask for parameters
+    char sentence[N];
+    printf("Type a sentence of max 100 characters:\n");
+    // fgets instead of gets for buffer overflow protection
+    fgets(sentence, N, stdin);
+    // Start the fun
+    separateString(sentence);
+    return 0;
+}

docs/code/Boletin_4/Ejercicio_28.c

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: 2024 Sprinter05
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+// Libraries
+#include <stdio.h>
+#define N 256
+
+int main(){
+    // Define variables and ask for parameters
+    int i=0, j=0;
+    char sentence[N], fixedSentence[N];
+    printf("Type a sentence\n");
+    // fgets instead of gets for buffer protection
+    fgets(sentence, N, stdin);
+    // Fix the sentence's multiple spaces
+    while(sentence[i]!='\0'){
+        if(sentence[i] == ' ' && sentence[i+1] == ' '){
+            i++;
+            continue;
+        } else {
+            fixedSentence[j]=sentence[i];
+            i++;
+            j++;
+        }
+    }
+    // Print the result after apprending the end of string to the fixed variable
+    fixedSentence[j+1] = '\0';
+    printf("\nThe sentence with fixed spaces is:\n%s", fixedSentence);
+    return 0;
+}

docs/code/Boletin_4/Ejercicio_36.c

@@ -0,0 +1,48 @@
+// SPDX-FileCopyrightText: 2024 Sprinter05
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+// Libraries
+#include <stdio.h>
+#include <stdbool.h>
+#define N 100
+
+void factorialDecomp(int toDecomp){
+    int factors[N], primes=2, loops=0, og=toDecomp;
+    // Check if its 1 or 0 and just print out that the decomp is 1
+    if(toDecomp == 0 | toDecomp == 1){
+        printf("\nNumber %d factorial decomposition is: 1", og);
+        return;
+    }
+    // Repeat the factorization with each reduced number until its 0
+    for(int i=0;i<N;i++){factors[i]=0;}
+    while(toDecomp != 1){
+        if(toDecomp%primes == 0){
+            toDecomp/=primes;
+            factors[loops]=primes;
+            loops++;
+            primes=2;
+        } else {primes++;}
+    }
+    // Print the result
+    printf("\nNumber %d factorial decomposition is: ", og);
+    for(int i=0;factors[i]!=0;i++){
+        if(factors[i+1]==0){
+            printf("%d", factors[i]);
+        } else {printf("%d*", factors[i]);}
+    }
+}
+
+int main(){
+    // Define variables and ask for parameters
+    int decompose[5];
+    printf("Type 5 integers separated by spaces:\n");
+    // Its just 5 parameters no for loop needed here
+    scanf("%d %d %d %d %d", &decompose[0], &decompose[1], &decompose[2], &decompose[3], &decompose[4]);
+    // Repeat the decomp for all numbers
+    for(int i=0;i<5;i++){
+        factorialDecomp(decompose[i]);
+    }
+    printf("\n");
+    return 0;
+}

docs/code/Boletin_4/Ejercicio_37.c

@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: 2024 Sprinter05
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+// Libraries
+#include <stdio.h>
+#define N 11
+#define M 100
+
+void checkLeaps(int n, int year){
+    int closeLeap, leaps[M], counter=1;
+    //Check closest
+    for(int i=0;i<4;i++){
+        if((year+i)%4 == 0){
+            closeLeap = year+i;
+            break;
+        }
+    }
+    // Get all the following leap years until the max amount is satisfied
+    leaps[0]=closeLeap;
+    while(counter != 100){
+        leaps[counter]=closeLeap+(4*counter);
+        counter++;
+    }
+    // Print results
+    printf("\nFollowing 100 leap years:\n");
+    for(int i=0; i<M; i++){
+        printf("%d ", leaps[i]);
+    }
+    printf("\n\n");
+}
+
+int main(){
+    // Define variables
+    char date[N];
+    int day, month, year;
+    // Endless loop so the user can change parameters (1==1)
+    while(1){
+        // Ask for parameters
+        printf("Input a date in the dd/mm/yyyy format: ");
+        scanf("%d/%d/%d", &day, &month, &year);
+        // Fix the string so it can be passed to the function more easily
+        snprintf(date, N, "%02d/%02d/%04d", day, month, year);
+        checkLeaps(100, year);
+    }
+    return 0;
+}