573 - The Snail

[jddantes]

Hello, I keep on getting WA. I've tried all the input in this thread

Code: Select all

#include <stdio.h>

int main(){
    while(1){
        int h,u,d,f;
        scanf("%d %d %d %d",&h,&u,&d,&f);

        if(!h)
            return 0;

        f*=u;
        h*=100;
        u*=100;
        d*=100;

        int day = 0;
        int good = 0;
        int pos = 0;

        while(1){
            day++;
            if(u<0)
                u = 0;

            pos += u;
            if(pos>h){
                good = 1;
                break;
            }

            u-=f;
            pos-=d;

            if(pos < 0)
                break;
        }
        if(good)
            printf("sucess ");
        else
            printf("failure ");
        printf("on day %d\n",day);


    }


    return 0;
}

[brianfry713]

success not sucess

[mratan16]

Hi a friend asked me to check his code and was wondering why it was wrong. I tried but could not find fault in it. Can you guys help?

Code: Select all

#include <iostream>
#include <cmath>
using namespace std;

int main(){
    double h, u, d, f;
    cin >> h >> u >> d >> f;
    if ((h == 0) || !(1 <= h <= 100) || !(1 <= u <= 100) || !(1 <= d <= 100) || !(1 <= f <= 100)){
        return 0;
    }
    /* h is where it starts, u is how much it moves, d is the constant it slides down,
    and f is the percentage that u is reduced by the next day */
    double i, s; // i is the day, s is the snail's current height which is 0
    i = 0;
    s = 0;
    while (true){
        i ++; // dawn of the first day which will then keep going
        s += u; // adding to the height
        if (s > h){
            cout << "success on day " << i << endl;
            return 0;
        }
        s -= d; // it is now night, snail slides down

        if (s < 0){
            cout << "failure on day " << i << endl;
            return 0;
        }
        u -= u * (f/100); // fatigue
        cout << s << "," << h << "," << i << endl;
    }
}

Thank you very much! .

[lighted]

Doesn't match sample I/O.

[mratan16]

Thanks again lighted. But I was wondering why?

[brianfry713]

The input file contains one or more test cases
Your code is only reading one test case and is printing extra stuff.

[mratan16]

Thanks a lot but would you know why it also fails on test cases?

[brianfry713]

If you know a test case that the code fails on, and you know what the output should be, then look at your code step by step and figure out where it is wrong.

[gautamzero]

WA ???

Code: Select all

AC

[lighted]

Input

Code: Select all

1 100 100 100
100 1 100 100
100 1 100 1
0 0 0 0

Acc Output

Code: Select all

success on day 1
failure on day 1
failure on day 1

[gautamzero]

what a silly mistake!!

thnx lighted

[juan321]

I have problems with some cases Help D:

success on day 4
failure on day 3
failure on day 7
failure on day 68
success on day 21
failure on day 1

[Zyaad Jaunnoo]

I have problems with some cases Help D:

success on day 4
failure on day 3
failure on day 7
failure on day 68
success on day 21
failure on day 1

Hello Juan,

Can you please post your code?

[Kinleyperker]

Can anyone help me with this code...It's getting WA

#include<stdio.h>

int main()
{
int H=1, U, D, F, x;
float s, v, w;

while(H>0)
{
scanf("%d %d %d %d", &H, &U, &D, &F);

w = U*F;

if(H>0)
{
s = 0.00;

for(x=0; ; x++)
{
if(x) v = v - (w/100);
else if(!x) v = U;

s = s + v;

if(s>H)
{
printf("success on day %d\n", x+1);
break;
}

s = s - D;

if(s<0)
{
printf("failure on day %d\n", x+1);
break;
}
}
}
}

return 0;
}

[prakashn27]

Hi can anyone help me with this code. I am getting wrong answer for a test case. Problem: 573 - The Snail

Code: Select all

int main() {
	int h, u, d, f;

	cin >> h;
	while(h != 0) {
		cin >> u >> d >> f;
		//cout << "inputs are " << h << u << d << f << endl;
		float initial_ht = 0.0, dist_climbed = (float)u, height_after_climbing = 0.0, height_after_sliding = 0.0;
		float depeciation_each_day = (float)u * f / 100;
		//cout << "depre each day " << depeciation_each_day << endl;
		int i = 1;
		bool is_success = true;
		for(i = 1; height_after_sliding < h; i++) {
			initial_ht = height_after_sliding;
			cout << initial_ht ;
			if(i != 1) {
				dist_climbed -= depeciation_each_day;
			}
			height_after_climbing = initial_ht + dist_climbed;
			if (height_after_climbing > h) {
				break;
			}
			if(height_after_climbing < 0) {
				is_success = false;
				break;
			}
			height_after_sliding = height_after_climbing - (float)d;
			initial_ht = height_after_sliding;
			cout  << " " << dist_climbed << " " << height_after_climbing << " " << height_after_sliding << endl;
		}
		if(!is_success) {
			cout << "failure on day ";
		} else {
			cout << "success on day ";
		}
		cout << i << endl;
		cin >> h;
	}
}

Input:

Code: Select all

56 3 1 5

Expected output:

Code: Select all

failure on day 32

Output i get is:

Code: Select all

failure on day 28

Thanks a lot in advance.