Submission #84027

#	Time	Username	Problem	Language	Result	Execution time	Memory
84027		tjdgus4384	방 배정 (KOI16_room)	C++14	100 / 100	3 ms	976 KiB

room

#include<cstdio>
#include<vector>
using namespace std;
int st[2][7];

int main()
{
    int n, k, s, y;
    scanf("%d %d", &n, &k);
    for(int i = 0;i < n;i++)
    {
        scanf("%d %d", &s, &y);
        st[s][y]++;
    }
    int ans = 0;
    ans += (st[0][1] + st[0][2] + st[1][1] + st[1][2] + k - 1) / k;
    ans += (st[0][3] + st[0][4] + k - 1) / k;
    ans += (st[1][3] + st[1][4] + k - 1) / k;
    ans += (st[0][5] + st[0][6] + k - 1) / k;
    ans += (st[1][5] + st[1][6] + k - 1) / k;
    printf("%d", ans);
    return 0;
}

Compilation message (stderr)

room.cpp: In function 'int main()':
room.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~~
room.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &s, &y);
         ~~~~~^~~~~~~~~~~~~~~~~

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