AtCoder Regular Contest 069

Submission #1339132

Source codeソースコード

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define INF 1e9+7
#define pf2 pop_front
#define pb2 pop_back
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define sz size
#define eps 1e-7
#define fod find_by_order
#define fastio ios::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
#define ofk order_of_key
#define val(x) cout << "Value dari "<< #x << " adalah " << x  << "\n"
#define tr tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>
typedef long long ll;
using namespace __gnu_pbds;
using namespace std;

int dx[8] = {1,0,-1,0,1,1,-1,-1};
int dy[8] = {0,1,0,-1,1,-1,1,-1};

void readf(string x){
	freopen((x+".in").c_str(),"r",stdin);
	freopen((x+".out").c_str(),"w",stdout);
}

void pr(string x){
	freopen((x+".in").c_str(),"w",stdout);
}


int read()
{
	bool min = 0;
	int  result = 0;
	char ch;
	ch = getchar();
	while(1)
	{
		if(ch == '-') break;
		if(ch >='0' && ch <= '9') break;
		ch = getchar();
	}
	if(ch == '-') min = 1;else result = ch-'0';
	while(1)
	{
		ch =getchar();
		if(ch< '0' || ch>'9') break;
		result = result * 10 + (ch-'0');
	}
	if(min) return -result;
	return result;
}
//Reynaldo's Template

int main(){
	ll N,M;
	cin >> N >> M;
	ll ans = min(N,M/2);
	N -= ans;
	M -= 2*ans;
	cout << ans + M/4 << "\n";
}

Submission

Task問題 C - Scc Puzzle
User nameユーザ名 rwhendry
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 300
Source lengthソースコード長 1381 Byte
File nameファイル名
Exec time実行時間 1 ms
Memory usageメモリ使用量 256 KB

Compiler messageコンパイルメッセージ

./Main.cpp: In function ‘void readf(std::string)’:
./Main.cpp:26:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
freopen((x+".in").c_str(),"r",stdin);
^
./Main.cpp:27:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
freopen((x+".out").c_str(),"w",stdout);
^
./Main.cpp: In function ‘void pr(std::string)’:
./Main.cpp:31:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
freopen((x+".in").c_str(),"w",stdout);
^

Test case

Set

Set name Score得点 / Max score Cases
Sample - 00_example_01.txt,00_example_02.txt
All 300 / 300 00_example_01.txt,00_example_02.txt,01.txt,02.txt,03.txt,04.txt,05.txt,06.txt,07.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
00_example_01.txt AC 1 ms 256 KB
00_example_02.txt AC 1 ms 256 KB
01.txt AC 1 ms 256 KB
02.txt AC 1 ms 256 KB
03.txt AC 1 ms 256 KB
04.txt AC 1 ms 256 KB
05.txt AC 1 ms 256 KB
06.txt AC 1 ms 256 KB
07.txt AC 1 ms 256 KB