Submission #64526529

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Source Code Expand

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

struct LIST {
	//int data;  // 要素
	int num;  // 要素
	struct LIST* next; // 次のデータの場所（ポインタ）
};

static void swap(int* a, int* b)
{
	int temp;
	temp = *a;
	*a = *b;
	*b = temp;
}

void quick_sort(int* a, int get_left, int get_right)
{
	int left = get_left, right = get_right - 1, standard = get_right;
	if (left <= right)
	{
		while (left < right)
		{
			// 基準以下・以上の
			while (a[left] < a[standard] && left < right)
			{
				left++;
			}
			while (a[right] > a[standard] && left < right)
			{
				right--;
			}
			if (left < right)
			{
				swap(&a[left], &a[right]);
				left++;
				right--;
			}
		}

		if (a[left] < a[standard])
		{
			left += 1;
		}
		swap(&a[left], &a[standard]);

		quick_sort(a, get_left, left - 1);
		quick_sort(a, left + 1, get_right);
	}
}

int binary_search(int target, int* a, int get_left, int get_right)
{
	int now = (get_left + get_right) / 2;

	if (a[now] == target)
	{
		return now;
	}
	else if (get_left == get_right)
	{
		return - 1;
	}
	else if (target < a[now])
	{
		return binary_search(target, a, get_left, now - 1);
	}
	else if (a[now] < target)
	{
		return binary_search(target, a, now + 1, get_right);
	}
}

int main(void) {
	int max_M = 3 * pow(10, 5);
	int i, j, k;

	int count = 0, temp = 0;

	int N, M;

	double sum = 0;

	scanf("%d %d", &N, &M);

	if (N == 1)
	{
		printf("%d", M + 1);
	}
	else if (M >= 30)
	{
		printf("inf");
	}
	else
	{
		temp = N;

		while (temp >= 10)
		{
			temp /= 10;
			count++;
			if (count > 10)
			{
				break;
			}
		}

		if ((count * M) > 9)
		{
			printf("inf");
		}
		else
		{
			for (i = M; i >= 0; i--)
			{
				sum += pow(N, i);
				if (sum > pow(10, 9))
				{
					break;
				}
			}
			if (sum > pow(10, 9))
			{
				printf("inf");
			}
			else
			{
				printf("%d", (int)sum);
			}
		}
	}


	return 0;
}

Submission Info

Compile Error

Main.c: In function ‘main’:
Main.c:87:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   87 |         scanf("%d %d", &N, &M);
      |         ^~~~~~~~~~~~~~~~~~~~~~

Judge Result