Submission #20825

#	Time	Username	Problem	Language	Result	Execution time	Memory
20825		model_code	방 배정 (KOI16_room)	C++11	100 / 100	0 ms	1116 KiB

room

#include <stdio.h>

int n,k;

int cnt[7][2];

int main()
{
scanf("%d %d", &n,&k);
for (int i = 1; i <= n; i++) {
int gender, year;
scanf("%d %d", &gender, &year);
cnt[year][gender]++;

}

int ans = 0;

for (int i = 3; i <= 5; i += 2) {
for (int j = 0; j <= 1; j++) {
ans += (cnt[i][j] + cnt[i + 1][j] + k - 1) / k;
}
}

ans += (cnt[1][0] + cnt[1][1] + cnt[2][0] + cnt[2][1] + k - 1) / k;
printf("%d", ans);

return 0;
} 

Compilation message (stderr)

room.cpp: In function 'int main()':
room.cpp:9:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d %d", &n,&k);
                      ^
room.cpp:12:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d %d", &gender, &year);
                               ^

• Subtask 1: 2 / 2
• Subtask 2: 10 / 10
• Subtask 3: 20 / 20
• Subtask 4: 68 / 68