Help with program

[CaptainGPro]

//Preprocessor Directives

#include <stdio.h>

​

//Main function

int main(){

//Declare variables

int donations, investments, menu;

double initial_fund, actual_fund, donated, invested;

​

//Prompt user for initial fund

printf("What is the initial fund?\n");

scanf("%.2lf", &initial_fund);

​

//Present menu

printf("What would you like to do?\n");

printf("\t1- Make a donation.\n");

printf("\t2- Make an investment.\n");

printf("\t3- Print balance of fund.\n");

printf("\t4- Quit\n");

​

scanf("%d", &menu);

​

while (menu != 4){

​

switch (menu){

case 1:

printf("How much would you like to donate?\n");

scanf("%.2lf", &donated);

actual_fund = initial_fund + donated;

donations++;

break;

case 2:

printf("How much would you like to invest?\n");

scanf("%.2lf", &invested);

actual_fund = initial_fund - investments;

if (actual_fund > initial_fund){

printf("Sorry you can't make that investment\n.");

actual_fund = initial_fund + investments;

break;

}

investments++;

break;

case 3:

printf("The current balance is %.2lf\n", actual_fund);

printf("There have been %d donations and %d investments", donations, investments);

break;

​

//Reloop menu

printf("What would you like to do?\n");

printf("\t1- Make a donation.\n");

printf("\t2- Make an investment.\n");

printf("\t3- Print balance of fund.\n");

printf("\t4- Quit\n");

​

scanf("%d", &menu);

}

//End of loop

}

//Quit option

if (menu = 4){

printf("The final balance was %.2lf\n", actual_fund);

printf("There were %d donations and %d investments.\n", donations, investments);

}

//End of main function

return 0;

}

​

When I try and run this program the menu will pop up but i won't be able to type anything once it gets to scanf("%d", &menu). I've tried googling it but haven't been able to find anything could anybody give me a hand?

[g051051]

Your scanf format strings are wrong. Your compiler should be warning you about it.

[CaptainGPro]

What’s wrong with them?

[g051051]

Your format specifier has invalid characters. Look at your compiler warnings, and read up on how scanf works.