oj.uz

답안 #105988

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
105988 2019-04-16T04:29:33 Z Hideo Jakarta Skyscrapers (APIO15_skyscraper) C++14
0 / 100
 8 ms 5120 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pb push_back
#define mk make_pair
#define fr first
#define sc second
#define vi vector < int >
#define vl vector < ll >
#define pi pair < int, int >
#define pii pair < int, pi >
#define vii vector < pi >

const int N = 2e5 + 7;
const int INF = 1e9 + 7;

int l[N], p[N], us[N];
int n, m, ans;

vii g[N];

void dfs (int v = 1, int c = 0){
    if (c >= us[v])
        return;
    us[v] = c;
    if (v == 2){
        ans = min(ans, c);
        return;
    }
    for (pi to : g[v])
        dfs(to.fr, c + to.sc);
}

main(){
    ans = INF;
    cin >> n >> m;
    for (int i = 1; i <= m; i++){
        us[i] = INF;
        scanf("%d%d", &l[i], &p[i]);
    }
    for (int i = 1; i <= m; i++)
        for (int j = 1; j <= m; j++)
            if (i != j && l[i] % p[i] == l[j] % p[i])
                g[i].pb(mk(j, abs(l[j] - l[i]) / p[i]));
    dfs();
    cout << ans;
}

Compilation message

skyscraper.cpp:35:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &l[i], &p[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 6 ms 4992 KB Output is correct
3 Correct 6 ms 4992 KB Output is correct
4 Incorrect 6 ms 4992 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 6 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Incorrect 7 ms 4992 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 6 ms 5120 KB Output is correct
3 Correct 6 ms 4992 KB Output is correct
4 Incorrect 8 ms 4964 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 5040 KB Output is correct
2 Correct 6 ms 4992 KB Output is correct
3 Correct 6 ms 4992 KB Output is correct
4 Incorrect 6 ms 4992 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 8 ms 4992 KB Output is correct
3 Correct 6 ms 4992 KB Output is correct
4 Incorrect 6 ms 4992 KB Output isn't correct
5 Halted 0 ms 0 KB -