agrego practicas

c/pipes3/.vscode/tasks.json

@@ -0,0 +1,28 @@
+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: gcc build active file",
+            "command": "/usr/bin/gcc",
+            "args": [
+                "-fdiagnostics-color=always",
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}/${fileBasenameNoExtension}"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "Task generated by Debugger."
+        }
+    ],
+    "version": "2.0.0"
+}

c/pipes3/entrada.txt

@@ -0,0 +1,2 @@
+este es un archivo
+de texto

c/pipes3/main.c

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+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+int count_words(char*);
+
+int main(void){
+
+    char buffer[50];
+    int total_words = 0;
+
+    while((fgets(buffer, sizeof(buffer), stdin)) != NULL){
+        total_words += count_words(buffer);
+    }
+
+    printf("El total de palabras es: %d\n", total_words);
+
+    return 0;
+}
+
+int count_words(char* line){
+    int palabras = 0;
+    bool hay_espacio = false;
+
+    printf("line: %s", line);
+
+    if((line[0] != ' ') && strlen(line) > 0){
+        palabras++;
+    }
+
+    for(int i = 0; i < strlen(line); i++){
+        if(line[i] == ' '){
+            hay_espacio = true;
+        }
+
+        if((line[i] != ' ') && (line[i] != '\n') && (hay_espacio)){
+            palabras++;
+            hay_espacio = false;
+        }
+    }
+    return palabras;
+}