oj.uz

Submission #409647

# Submission time Handle Problem Language Result Execution time Memory
409647 2021-05-21T09:23:43 Z juggernaut Fireworks (APIO16_fireworks) C++17
26 / 100
 29 ms 15272 KB 
#include<bits/stdc++.h>
#define fr first
#define sc second
using namespace std;
void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
typedef long long ll;
#define USING_ORDERED_SET 0
#if USING_ORDERED_SET
#include<bits/extc++.h>
using namespace __gnu_pbds;
template<class T>using ordered_set=tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
#endif
template<class T>void umax(T &a,T b){if(a<b)a=b;}
template<class T>void umin(T &a,T b){if(b<a)a=b;}
#ifdef IOI2021SG
    #define printl(args...)printf(args)
#else
    #define printl(args...)((void)0)
#endif
vector<pair<int,int>>g[300005];
int dp[305][305],n,m;
void dfs(int v){
    if(v>n){
        dp[v][0]=0;
        for(int i=1;i<=300;i++)dp[v][i]=1e9;
        return;
    }
    for(auto &[to,w]:g[v]){
        dfs(to);
        for(int i=0;i<=300;i++){
            int mn=1e7;
            for(int j=0;j<=i;j++)umin(mn,dp[to][j]+abs(i-j-w));
            dp[v][i]+=mn;
        }
    }
}
int main(){
    scanf("%d%d",&n,&m);
    if(n==1){
        vector<int>v;
        for(int i=2;i<=n+m;i++){
            int x,y;
            scanf("%d%d",&x,&y);
            v.push_back(y);
        }
        ll ans=9e18;
        for(int x:v){
            ll cnt=0;
            for(int y:v)cnt+=abs(x-y);
            umin(ans,cnt);
        }
        printf("%lld",ans);
        exit(0);
    }
    for(int i=2;i<=n+m;i++){
        int x,y;
        scanf("%d%d",&x,&y);
        g[x].emplace_back(i,y);
    }
    dfs(1);
    int ans=2e9;
    for(int i=0;i<=300;i++)umin(ans,dp[1][i]);
    printf("%d",ans);
}

Compilation message

fireworks.cpp: In function 'void usaco(std::string)':
fireworks.cpp:5:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fireworks.cpp:5:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                                                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fireworks.cpp: In function 'int main()':
fireworks.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     scanf("%d%d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~
fireworks.cpp:43:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |             scanf("%d%d",&x,&y);
      |             ~~~~~^~~~~~~~~~~~~~
fireworks.cpp:57:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   57 |         scanf("%d%d",&x,&y);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 4 ms 7244 KB Output is correct
5 Correct 6 ms 7244 KB Output is correct
6 Correct 5 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 5 ms 7244 KB Output is correct
9 Correct 5 ms 7244 KB Output is correct
10 Correct 5 ms 7244 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7244 KB Output is correct
2 Correct 6 ms 7380 KB Output is correct
3 Correct 8 ms 7360 KB Output is correct
4 Correct 10 ms 7372 KB Output is correct
5 Correct 12 ms 7436 KB Output is correct
6 Correct 12 ms 7500 KB Output is correct
7 Correct 14 ms 7500 KB Output is correct
8 Correct 15 ms 7500 KB Output is correct
9 Correct 15 ms 7500 KB Output is correct
10 Correct 19 ms 7604 KB Output is correct
11 Correct 18 ms 7620 KB Output is correct
12 Correct 20 ms 7628 KB Output is correct
13 Correct 21 ms 7628 KB Output is correct
14 Correct 22 ms 7628 KB Output is correct
15 Correct 22 ms 7696 KB Output is correct
16 Correct 22 ms 7676 KB Output is correct
17 Correct 21 ms 7628 KB Output is correct
18 Correct 29 ms 7604 KB Output is correct
19 Correct 22 ms 7684 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 4 ms 7244 KB Output is correct
5 Correct 6 ms 7244 KB Output is correct
6 Correct 5 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 5 ms 7244 KB Output is correct
9 Correct 5 ms 7244 KB Output is correct
10 Correct 5 ms 7244 KB Output is correct
11 Correct 5 ms 7244 KB Output is correct
12 Correct 6 ms 7380 KB Output is correct
13 Correct 8 ms 7360 KB Output is correct
14 Correct 10 ms 7372 KB Output is correct
15 Correct 12 ms 7436 KB Output is correct
16 Correct 12 ms 7500 KB Output is correct
17 Correct 14 ms 7500 KB Output is correct
18 Correct 15 ms 7500 KB Output is correct
19 Correct 15 ms 7500 KB Output is correct
20 Correct 19 ms 7604 KB Output is correct
21 Correct 18 ms 7620 KB Output is correct
22 Correct 20 ms 7628 KB Output is correct
23 Correct 21 ms 7628 KB Output is correct
24 Correct 22 ms 7628 KB Output is correct
25 Correct 22 ms 7696 KB Output is correct
26 Correct 22 ms 7676 KB Output is correct
27 Correct 21 ms 7628 KB Output is correct
28 Correct 29 ms 7604 KB Output is correct
29 Correct 22 ms 7684 KB Output is correct
30 Runtime error 24 ms 15272 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 4 ms 7244 KB Output is correct
5 Correct 6 ms 7244 KB Output is correct
6 Correct 5 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 5 ms 7244 KB Output is correct
9 Correct 5 ms 7244 KB Output is correct
10 Correct 5 ms 7244 KB Output is correct
11 Correct 5 ms 7244 KB Output is correct
12 Correct 6 ms 7380 KB Output is correct
13 Correct 8 ms 7360 KB Output is correct
14 Correct 10 ms 7372 KB Output is correct
15 Correct 12 ms 7436 KB Output is correct
16 Correct 12 ms 7500 KB Output is correct
17 Correct 14 ms 7500 KB Output is correct
18 Correct 15 ms 7500 KB Output is correct
19 Correct 15 ms 7500 KB Output is correct
20 Correct 19 ms 7604 KB Output is correct
21 Correct 18 ms 7620 KB Output is correct
22 Correct 20 ms 7628 KB Output is correct
23 Correct 21 ms 7628 KB Output is correct
24 Correct 22 ms 7628 KB Output is correct
25 Correct 22 ms 7696 KB Output is correct
26 Correct 22 ms 7676 KB Output is correct
27 Correct 21 ms 7628 KB Output is correct
28 Correct 29 ms 7604 KB Output is correct
29 Correct 22 ms 7684 KB Output is correct
30 Runtime error 24 ms 15272 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -