2020-10-04 12:37:40

//Bài 5: Tính S(n) = 1 + 1/3 + 1/5 + … + 1/(2n + 1)
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main(){
	float S,n,i;
	S=0;
	printf("\nNhap n:");
	scanf("%f",&n);
	for(i=0;i<n;i++){
		S=S+(1/(2*i + 1));
}
	printf("\nTong S=%f",S);
	return 0;
}

2020-10-04 11:43:00

#include <stdio.h>
#include <stdlib.h>
//Bài 1: Tính S(n) = 1 + 2 + 3 + … + n
int main(){
	int n,S,i;
	S=0;
	printf("\nNhap n:");
	scanf("%d",&n);
	if(n<0){
		printf("\nNhap n>0:%d",n);
		printf("\nNhap n:");
		scanf("%d",&n);
	}
	else{
		for(i=1;i<=n;i++)
			S=S+i;
	}
	printf("\nTong :%d",S);
	return 0;
}

2020-10-01 15:18:09

//Bai 196
#include <stdio.h>
#include <stdlib.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char *argv[]) {
	int i, n;
	printf("\nNhap so phan tu n: ");
	scanf("%d", &n);
	int mang[n];
	for(i=0;i<n;i++) {
		printf("Nhap phan tu thu %d: ", i+1);
		scanf("%d", &mang[i]);
	}
	printf("Cac phan tu am trong mang: ");
	for(i=0;i<n;i++) {
		if (mang[i] < 0) {
			printf("%d", mang[i]);
		}
	}
	

	return 0;
}

2020-09-15 04:17:23

#include<stdio.h>
int main(){
	int n;
	printf("Nhap so nguyen duong n: ");
	scanf("%d",&n);
	if(n<=0){
		printf("Khong phai la so nguyen duong");
	}
	else{
		int i=1,tong=0;
		while(i<=n) {
			if (n % i !=0){
				i++;
				continue;
			}
			tong=tong+i;
			i++;
		}
		printf("\nTong bang %d",tong);
	}
	return 0;
	}

2020-09-14 02:41:29

Bai tap 6

#include<stdio.h>
int main(){
	int n;
	printf("\nNhap n = ");
	scanf("%d",&n);
	if (n<=0)
	printf("Khong tinh duoc");
	else{
		float tong=0;
		for(int i=1;i<=n;++i)
		tong=tong + (1.0/(i*(i+1)));
		printf("Tong bang %f",tong);
	}
	getch();
	return 0;
}

2020-09-13 13:09:50

Bài tập 4

#include<stdio.h>
#include<math.h>
int main(){
	int n;
	printf("\nNhap n:");
	scanf("%d",&n);
	if (n<=0)
	printf("Khong tinh duoc");
	else{
		float tong=0;
		for (int i=1;i<=n;++i)
		tong= tong + (1.0/(2*i));
		printf("Tong day so do la %f",tong);
	}
	return 0;	
}

2020-09-13 13:05:01

Bài tập 797

#include<stdio.h>
int main(){
	float Toan,Ly,Hoa;
	char code[5];
	char name[30];
	printf("\nTen cua thi sinh: ");
	gets(name);
	printf("\nMa sinh vien: ");
	gets(code);
	fflush(stdin);fflush(stdout);
	printf("\nDiem thi mon Toan: "); scanf("%f",&Toan);
	printf("\nDiem thi mon Ly: "); scanf("%f",&Ly);
	printf("\nDiem thi mon Hoa: "); scanf("%f",&Hoa);
	
	printf("\nHO SO THI SINH:");
	printf("\n=============================");
	printf("\nHo va ten: %s",name);
	printf("\nMa sinh vien: %s",code);
	printf("\nDiem thi mon Toan: %g",Toan);
	printf("\nDiem thi mon Ly: %g",Ly);
	printf("\nDiem thi mon Hoa: %g",Hoa);
	printf("\nDiem tong 3 mon: %g",Toan+Ly+Hoa);
	
	getch();
	return 0;
	
	
	
}

2020-09-13 12:41:41

#include<stdio.h>
#include<math.h>
int main(){
	int n;
	printf("\nNhap n:");
	scanf("%d",&n);
	if (n<=0)
	printf("Khong tinh duoc");
	else{
		float tong=0;
		for (int i=1;i<=n;++i)
		tong= tong + (1.0/i);
		printf("Tong day so do la %f",tong);
	}
	return 0;	
}

2020-09-13 11:54:19

Bài tập số 1

#include<stdio.h>
int main(){
	int n;
	printf("\nNhap n:");
	scanf("%d",&n);
	if (n<=0){
		printf("Ban da lam sai");
	}
	else{
		int tong=0;
		for(int i=0;i<=n;++i)
		tong = tong + i;
		printf("Tong n so la %d",tong);
	}
	getch();
	return 0;
}

2020-09-13 11:53:06

#include<stdio.h>
int main(){
	int n;
	printf("Bai toan tinh tong cua 1 day so binh phuong");
	printf("\nNhap n:");
	scanf("%d",&n);
	if (n<=0)
	printf("Khong tinh duoc");
	else{
		int tong=0;
		for (int i=0;i<=n;++i)
		tong= tong + i*i;
		printf("Tong day so do la %d",tong);
	}
	getch();
	return 0;	
}