Submission #240872

#	Time	Username	Problem	Language	Result	Execution time	Memory
240872		kartel	Pick (COI18_pick)	C++14	Compilation error	0 ms	0 KiB

pick

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#define F first
#define S second
#define pb push_back
#define N +400500
#define M ll(1e9 + 7)
#define sz(x) (int)x.size()
#define re return
#define oo ll(1e9)
#define el '\n'
#define pii pair <int, int>
#define err ld(1e-9)
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef long double ld;

ll a, b, c, d;

int main()
{
    srand(time(0));
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

//    in("input.txt");
//    out("output.txt");

    cin >> a >> b >> c >> d;

    x = 0; y = 0;

    if (c == 0 && d == 0)
    {
        cout << x << " " << y << el;

        for (i = 1; i <= a / 2) {x--; cout << x << " " << y << el;}
        for (i = 1; i <= b / 2) {y++; cout << x << " " << y << el;}
        for (i = 1; i <= a / 2) {x++; cout << x << " " << y << el;}
        for (i = 1; i < b / 2) {y--; cout << x << " " << y << el;}
    }else
    {
        cout << x << " " << y << el;
        for (i = 1; i <= c / 2; i++) {x++; y++; cout << x << " " << y << el;}
        for (i = 1; i <= d / 2; i++) {x--; y++; cout << x << " " << y << el;}
        for (i = 1; i <= c / 2; i++) {x--; y--; cout << x << " " << y << el;}
        for (i = 1; i < d / 2; i++) {x++; y--; cout << x << " " << y << el;}
    }
}

//
//1100000000
//1110000000
//0110000000
//0000000000
//0000000000
//0000000000
//0000000000
//0000000000

Compilation message (stderr)

pick.cpp: In function 'int main()':
pick.cpp:42:5: error: 'x' was not declared in this scope
     x = 0; y = 0;
     ^
pick.cpp:42:12: error: 'y' was not declared in this scope
     x = 0; y = 0;
            ^
pick.cpp:48:14: error: 'i' was not declared in this scope
         for (i = 1; i <= a / 2) {x--; cout << x << " " << y << el;}
              ^
pick.cpp:48:31: error: expected ';' before ')' token
         for (i = 1; i <= a / 2) {x--; cout << x << " " << y << el;}
                               ^
pick.cpp:49:14: error: 'i' was not declared in this scope
         for (i = 1; i <= b / 2) {y++; cout << x << " " << y << el;}
              ^
pick.cpp:49:31: error: expected ';' before ')' token
         for (i = 1; i <= b / 2) {y++; cout << x << " " << y << el;}
                               ^
pick.cpp:50:14: error: 'i' was not declared in this scope
         for (i = 1; i <= a / 2) {x++; cout << x << " " << y << el;}
              ^
pick.cpp:50:31: error: expected ';' before ')' token
         for (i = 1; i <= a / 2) {x++; cout << x << " " << y << el;}
                               ^
pick.cpp:51:14: error: 'i' was not declared in this scope
         for (i = 1; i < b / 2) {y--; cout << x << " " << y << el;}
              ^
pick.cpp:51:30: error: expected ';' before ')' token
         for (i = 1; i < b / 2) {y--; cout << x << " " << y << el;}
                              ^
pick.cpp:55:14: error: 'i' was not declared in this scope
         for (i = 1; i <= c / 2; i++) {x++; y++; cout << x << " " << y << el;}
              ^
pick.cpp:56:14: error: 'i' was not declared in this scope
         for (i = 1; i <= d / 2; i++) {x--; y++; cout << x << " " << y << el;}
              ^
pick.cpp:57:14: error: 'i' was not declared in this scope
         for (i = 1; i <= c / 2; i++) {x--; y--; cout << x << " " << y << el;}
              ^
pick.cpp:58:14: error: 'i' was not declared in this scope
         for (i = 1; i < d / 2; i++) {x++; y--; cout << x << " " << y << el;}
              ^