the problem is the output doesn’t show “3.14”, it just shows nothing…

                #include <stdio.h>

                int main() {
                    char grade = 'A';
                    char compliment[] = "nice work";
                    char decimalNumber = 3.14;
                    printf("your grade is %c n", grade);
                    printf("%s n", compliment);
                    printf("%i", decimalNumber);
                }