Submission #1951070

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Source Code Expand

#define _CRT_SECURE_NO_WARNINGS
#include <algorithm>
#include <stdio.h>

struct Katana {
	int damage;
	bool isSingle;
};

int main() {
	int N, H;
	scanf("%d %d", &N, &H);
	Katana a[20000];
	for (int i = 0; i < N; ++i) {
		scanf("%d %d", &a[2 * i].damage, &a[2 * i + 1].damage);
		a[2 * i].isSingle = false;
		a[2 * i + 1].isSingle = true;
	}
	std::sort(a, a + 2 * N, [](const Katana &a, const Katana &b) {
		return a.damage > b.damage;
	});
	int ans = 0;
	int i = 0;
	while (H > 0) {
		if (a[i].isSingle) {
			H -= a[i++].damage;
			++ans;
		}
		else {
			int t = H / a[i].damage;
			ans += t;
			H -= a[i].damage * t;
			if (H > 0) {
				H -= a[i].damage;
				++ans;
			}
		}
	}
	printf("%d", ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:12:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &H);
                        ^
./Main.cpp:15:57: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &a[2 * i].damage, &a[2 * i + 1].damage);
                                                         ^

Judge Result