제출 #127136

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
127136	2019-07-09 00:13:25	eriksuenderhauf	Printed Circuit Board (CEOI12_circuit)	C++11	100 / 100	65 ms	1764 KiB

circuit

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#pragma GCC optimize("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#define enl printf("\n")
#define ni(n) scanf("%d", &(n))
#define pri(n) printf("%d\n", (n))
#define pii pair<int, int>
#define pb push_back
#define fi first
#define se second
using namespace std;
typedef long long ll;
const int MAXN = 2e5 + 5;
pair<int,int> b[MAXN];
int n;
bool ans[MAXN], vis[MAXN], mrk[MAXN];
int sgn(int x, int y, int z) {
    ll ret = (ll)(b[y].fi-b[x].fi)*(b[z].se-b[x].se) - (ll)(b[y].se-b[x].se)*(b[z].fi-b[x].fi);
    if (ret == 0) return 0;
    return ret > 0 ? 1 : -1;
}
inline int nx(int i, int d) {
    return (i + d + n - 1) % n + 1;
}
inline int pr(int i, int d) {
    return (i - d + n - 1) % n + 1;
}
 
 
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컴파일 시 표준 에러 (stderr) 메시지

circuit.cpp: In function 'int main()':
circuit.cpp:6:34: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
 #define pri(n) printf("%d\n", (n))
                               ~~~^
circuit.cpp:128:5: note: in expansion of macro 'pri'
     pri(ans2.size());
     ^~~
circuit.cpp:99:9: warning: unused variable 'm' [-Wunused-variable]
     int m = 1, k = 0;
         ^
circuit.cpp:5:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 #define ni(n) scanf("%d", &(n))
               ~~~~~^~~~~~~~~~~~
circuit.cpp:47:5: note: in expansion of macro 'ni'
     ni(n);
     ^~
circuit.cpp:64:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &x, &y);
     ~~~~~^~~~~~~~~~~~~~~~~
circuit.cpp:78:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &x, &y);
         ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100