Submission #213218

#	Time	Username	Problem	Language	Result	Execution time	Memory
213218		dolphingarlic	Coins (BOI06_coins)	C++14	100 / 100	138 ms	10104 KiB

coins

#include <cstdio>

int a[500001], b[500001];

int main() {
	int n, k, sm = 0, cnt = 0;
	scanf("%d %d", &n, &k);
	for (int i = 0; i < n; i++) scanf("%d %d", a + i, b + i);
	a[n] = k;
	for (int i = 0; i < n; i++) {
		if (b[i]) continue;
		if (sm + a[i] < a[i + 1]) sm += a[i], cnt++;
	}
	printf("%d\n%d\n", cnt, k - (sm ? sm : 1));
	return 0;
}

Compilation message (stderr)

coins.cpp: In function 'int main()':
coins.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &k);
  ~~~~~^~~~~~~~~~~~~~~~~
coins.cpp:8:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 0; i < n; i++) scanf("%d %d", a + i, b + i);
                              ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100