//bai 1.1 :Lai suat tiet kiem

#include<stdio.h>

#include<conio.h>

void sotiennhan();

void sothang();

void sotiengui();

void main()

{

sotiennhan();

sothang();

sotiengui();

getch();

}

void sotiennhan()//nhap lai suat, so tien gui, so thang gui tinh so tien nhan

{

float sotiengui, sothang, sotiennhan, laisuat;

printf("\tTinh so tien gui");

printf("

Nhap vao so tien gui($):");

scanf("%f", &sotiengui);

printf("

Nhap so thang gui:");

scanf("%f", &sothang);

printf("

Nhap vao lai suat(%):");

scanf("%f", &laisuat);

sotiennhan=sotiengui;

for(int i=0;i<sothang;i++)

sotiennhan=sotiennhan+sotiennhan*laisuat/100;

printf("

So tien nhan sau %f thang la %f$", sothang, sotiennhan);

}

void sothang()//nhap lai suat, so tien gui, so tien nhan, tinh thang gui

{

float sotiengui, sotiennhan, laisuat, sotien;

int i=0;

printf("

\tTinh so thang gui");

printf("

Nhap vao so tien gui($):");

scanf("%f", &sotiengui);

printf("

Nhap so tien can nhan($):");

scanf("%f", &sotiennhan);

printf("

Nhap vao lai suat(%):");

scanf("%f", &laisuat);

sotien=sotiengui;

while(sotien<sotiennhan)

{

sotien=sotien+sotien*laisuat/100;

i++;

}

printf("

So thang can thiet de nhan duoc %f$ khi gui %f$ la:%d", sotiennhan, sotiengui, i);

}

void sotiengui()

{

float sotiengui, sotiennhan, laisuat;

int sothang;

printf("

\tTinh so tien can gui");

printf("

Nhap vao so tien nhan($):");

scanf("%f", &sotiengui);

printf("

Nhap so thang gui:");

scanf("%d", &sothang);

printf("

Nhap vao lai suat(%):");

scanf("%f", &laisuat);

sotiengui=sotiennhan;

for(int i=0;i<sothang;i++)

sotiengui=sotiengui/(1+laisuat/100);

printf("

So tien gui la:%f$", sotiengui);

}