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답안 #79941

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
79941 2018-10-17T13:36:33 Z luckyboy Deda (COCI17_deda) C++14
140 / 140
 193 ms 13960 KB 
#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a); i <= (b); ++i)
#define FORD(i, a, b) for (int i = (a); i >= (b); --i)
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define maxc 1000000007
#define maxn 200005
#define maxm 500005
#define pii pair <int,int>
#define Task "Deda"
using namespace std;
int n,q,t[maxn << 2],x,y;
char c;
void Update(int l,int r,int id,int x,int val)
{
    t[id] = min(t[id],val);
    if (l == r) return;
    int mid = (l+r) >> 1;
    if (mid >= x) Update(l,mid,2*id,x,val);
    else Update(mid+1,r,2*id+1,x,val);
}
int Find(int l,int r,int id,int x,int val)
{
    if (r < x) return 0;
    if (l == r) return (t[id] <= val ? l : 0);
    if (x <= l && t[id] > val) return 0;
    int mid = (l+r) >> 1;
    int temp = Find(l,mid,2*id,x,val);
    if (temp) return temp;
    return Find(mid+1,r,2*id+1,x,val);
}
int main()
{
    //freopen(Task".inp", "r",stdin);
    //freopen(Task".out", "w",stdout);
    scanf("%d%d",&n,&q);
    FOR(i,1,n << 2) t[i] = maxc;
    while (q--)
    {
        scanf("%c%c%d%d",&c,&c,&x,&y);
        if (c == 'M') Update(1,n,1,y,x);
        else
        {
            int ans = Find(1,n,1,y,x);
            if (!ans) ans = -1;
            printf("%d\n",ans);
        }
    }
    return 0;
}

Compilation message

deda.cpp: In function 'int main()':
deda.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&q);
     ~~~~~^~~~~~~~~~~~~~
deda.cpp:42:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%c%c%d%d",&c,&c,&x,&y);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
140.0 / 140.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 5 ms 528 KB Output is correct
4 Correct 193 ms 8064 KB Output is correct
5 Correct 135 ms 9584 KB Output is correct
6 Correct 150 ms 12628 KB Output is correct
7 Correct 164 ms 13960 KB Output is correct