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recap_island/fundamentals/villagers.c

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+#include "village.h"
+#include <ctype.h>
+#include <stddef.h>
+#include <strings.h>
+#include <stdio.h>
+
+char *oldest_villager(const struct villager *village, unsigned int population){
+
+    if(!village || population <= 0) return NULL;
+    
+    unsigned int oldest = 0;
+    char *name = NULL;
+    size_t index = 0;
+    while(index < population){
+
+        if(village[index].age > oldest){ 
+            name = village[index].name;
+            oldest = village[index].age;}
+        index ++;
+    }
+
+    return name;
+}
+
+float average_village_age(const struct villager *village, unsigned int population){
+
+    if(!village || population <= 0) return -1;
+
+    float tot = 0;
+    size_t index = 0;
+    while(index < population){
+        tot += village[index].age;
+        index ++;
+    }
+
+    return tot / population;
+
+}
+
+void sort_village(struct villager *village, unsigned int population){
+
+    //ordre : WORKER - SELLER - MUSICIAN - UNEMPLOYED
+
+    if(!village || population <= 0) return ;
+    size_t index = 0;
+    int is_sort = 0;
+    while(!is_sort){
+        
+        is_sort = 1;
+        index = 0;
+
+        while(index < population - 1){
+    
+            if(village[index].job > village[index + 1].job){
+                
+                struct villager tmp = village[index];
+                village[index] = village[index + 1];
+                village[index + 1] = tmp;
+                
+                is_sort = 0;
+            }
+            index ++;
+            
+        }
+    }
+
+}
+/*
+int main(void)
+{
+    struct villager village[2] = {
+        {
+            .name = "Tom Nook",
+            .age = 99,
+            .job = SELLER,
+            .favorite_quote = "It's 42 bells",
+        },
+        {
+            .name = "Marie",
+            .age = 23,
+            .job = WORKER,
+            .favorite_quote = "It's so expensive!",
+        },
+    };
+    unsigned int population = 2;
+
+    char *oldest = oldest_villager(village, population);
+    printf("Hi %s!\n", oldest);
+
+    oldest = oldest_villager(NULL, 0);
+    printf("%p\n", oldest);
+    
+    float avg = average_village_age(village, population);
+    printf("Avg: %.2f\n", avg);
+
+    avg = average_village_age(village, 0);
+    printf("Avg: %.2f\n", avg);
+    
+    sort_village(village, population);
+
+    for (unsigned int i = 0; i < population; i++)
+    {
+        printf("I'm %s (%d)\n", village[i].name, village[i].age);
+    }
+}*/