Submission #65005041

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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;

	char S[101];

	scanf("%s", S);
	i = 0;

	while (S[i] != '\n' && S[i] != '\0')
	{
		if (S[i] >= 65 && S[i] <= 90)
		{
			printf("%c", S[i]);
		}
		i++;
	}


	return 0;
}

Submission Info

Compile Error

Main.c: In function ‘main’:
Main.c:83:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   83 |         scanf("%s", S);
      |         ^~~~~~~~~~~~~~

Judge Result