結果
| 問題 |
No.1120 Strange Teacher
|
| コンテスト | |
| ユーザー |
Ricky_pon
|
| 提出日時 | 2020-07-22 21:59:18 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,298 bytes |
| コンパイル時間 | 1,957 ms |
| コンパイル使用メモリ | 191,972 KB |
| 最終ジャッジ日時 | 2025-01-12 02:42:17 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 24 WA * 3 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:37:23: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=]
37 | else printf("%d\n", abs(a[0] - b[0]));
| ~^ ~~~~~~~~~~~~~~~~
| | |
| int long long int
| %lld
main.cpp:30:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
30 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
main.cpp:33:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
33 | rep(i, n) scanf("%lld", &a[i]);
| ~~~~~^~~~~~~~~~~~~~~
main.cpp:34:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
34 | rep(i, n) scanf("%lld", &b[i]), sum += a[i] - b[i], cnt += (a[i]%2 == b[i]%2);
| ~~~~~^~~~~~~~~~~~~~~
ソースコード
#include <bits/stdc++.h>
#define For(i, a, b) for(int (i)=(int)(a); (i)<(int)(b); ++(i))
#define rFor(i, a, b) for(int (i)=(int)(a)-1; (i)>=(int)(b); --(i))
#define rep(i, n) For((i), 0, (n))
#define rrep(i, n) rFor((i), (n), 0)
#define fi first
#define se second
using namespace std;
typedef long long lint;
typedef unsigned long long ulint;
typedef pair<int, int> pii;
typedef pair<lint, lint> pll;
template<class T> bool chmax(T &a, const T &b){if(a<b){a=b; return true;} return false;}
template<class T> bool chmin(T &a, const T &b){if(a>b){a=b; return true;} return false;}
template<class T> T div_floor(T a, T b){
if(b < 0) a *= -1, b *= -1;
return a>=0 ? a/b : (a+1)/b-1;
}
template<class T> T div_ceil(T a, T b){
if(b < 0) a *= -1, b *= -1;
return a>0 ? (a-1)/b+1 : a/b;
}
constexpr lint mod = 1000000007;
constexpr lint INF = mod * mod;
constexpr int MAX = 200010;
int main(){
int n;
scanf("%d", &n);
lint a[n], b[n], sum = 0;
int cnt = 0;
rep(i, n) scanf("%lld", &a[i]);
rep(i, n) scanf("%lld", &b[i]), sum += a[i] - b[i], cnt += (a[i]%2 == b[i]%2);
if(n == 2){
if(sum != 0) puts("-1");
else printf("%d\n", abs(a[0] - b[0]));
return 0;
}
printf("%lld\n", cnt % n == 0 && sum % (n-2) == 0 ? sum / (n-2) : -1);
}
Ricky_pon