Submission #826138
Source Code Expand
#include<iostream> #include<sstream> #include<fstream> #include<string> #include<vector> #include<deque> #include<queue> #include<stack> #include<set> #include<map> #include<algorithm> #include<functional> #include<utility> #include<bitset> #include<cmath> #include<cstdlib> #include<ctime> #include<cstdio> using namespace std; #define REP(i,n) for(int i=0;i<int(n);i++) #define foreach(c,itr) for(__typeof((c).begin()) itr=(c).begin();itr!=(c).end();itr++) typedef long long ll; typedef pair<int,int> P; int s[100010],c[100010]; int n,m; int main(void){ int i; cin.tie(0); ios_base::sync_with_stdio(false); cin >> n >> m; for(i=1;i<=n;i++) s[i]=1; c[1]=1; for(i=1;i<=m;i++){ int x,y; cin >> x >> y; if(s[x]==1 && c[x]==1){ s[x]--; c[x]=0; s[y]++; c[y]=1; } else if(s[x]>=2 && c[x]==1){ s[x]--; s[y]++; c[y]=1; } else{ s[x]--; s[y]++; } } int ans=0; for(i=1;i<=n;i++) ans+=c[i]; cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Box and Ball |
User | daiota |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 1048 Byte |
Status | AC |
Exec Time | 34 ms |
Memory | 1024 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt, 0_02.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 4 ms | 256 KB |
0_01.txt | AC | 4 ms | 256 KB |
0_02.txt | AC | 4 ms | 256 KB |
1_00.txt | AC | 4 ms | 256 KB |
1_01.txt | AC | 4 ms | 256 KB |
1_02.txt | AC | 4 ms | 256 KB |
1_03.txt | AC | 4 ms | 256 KB |
1_04.txt | AC | 28 ms | 640 KB |
1_05.txt | AC | 32 ms | 1024 KB |
1_06.txt | AC | 27 ms | 640 KB |
1_07.txt | AC | 33 ms | 640 KB |
1_08.txt | AC | 23 ms | 512 KB |
1_09.txt | AC | 24 ms | 896 KB |
1_10.txt | AC | 10 ms | 768 KB |
1_11.txt | AC | 15 ms | 384 KB |
1_12.txt | AC | 6 ms | 1024 KB |
1_13.txt | AC | 29 ms | 768 KB |
1_14.txt | AC | 17 ms | 384 KB |
1_15.txt | AC | 26 ms | 384 KB |
1_16.txt | AC | 5 ms | 768 KB |
1_17.txt | AC | 34 ms | 1024 KB |
1_18.txt | AC | 31 ms | 640 KB |
1_19.txt | AC | 32 ms | 512 KB |
1_20.txt | AC | 33 ms | 384 KB |
1_21.txt | AC | 27 ms | 640 KB |
1_22.txt | AC | 34 ms | 768 KB |
1_23.txt | AC | 12 ms | 768 KB |