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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main() {
  5.     char name[3][50], surname[3][50];
  6.     float grade[3], sum = 0;
  7.     int i;
  8.  
  9.     for (i = 0; i < 3; i++) {
  10.         printf("Friend %d\n", i+1);
  11.         printf("Name: "); 
  12.         scanf("%s", name[i]);
  13.         printf("Surname: "); 
  14.         scanf("%s", surname[i]);
  15.         printf("GPA: "); 
  16.         scanf("%f", &grade[i]);
  17.         sum += grade[i];
  18.     }
  19.  
  20.     printf("\n--- Result ---\n");
  21.     for (i = 0; i < 3; i++) {
  22.         char full[100];
  23.         strcpy(full, name[i]);
  24.         strcat(full, " ");
  25.         strcat(full, surname[i]);
  26.         printf("%s (%d chars) - GPA: %.2f\n", full, strlen(full), grade[i]);
  27.     }
  28.  
  29.     float avg = sum / 3;
  30.     printf("Group GPA: %.2f => %s\n", avg, avg >= 3.0 ? "Good" : "FAIR");
  31.  
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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Friend 1
Name: Surname: GPA: Friend 2
Name: Surname: GPA: Friend 3
Name: Surname: GPA: 
--- Result ---
G�GR� �Y�� (13 chars) - GPA: 0.00
  (1 chars) - GPA: 66906511892130383790080.00
 � (3 chars) - GPA: 0.00
Group GPA: 22302169880110190034944.00 => Good
https://ideone.com/vnkp5J
language:
C (gcc 8.3)
created:
17 hours ago
visibility:
public

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