Submission #140143

#	Time	Username	Problem	Language	Result	Execution time	Memory
140143		rajarshi_basu	Mechanical Doll (IOI18_doll)	C++14	Compilation error	0 ms	0 KiB

doll

#include <bits/stdc++.h>

#include "doll.h"

#define FOR(i,n) for(int i = 0;i<n;i++)
#define FORE(i,a,b) for(int i= a;i<=b;i++)
#define ll long long int
#define vi vector<int>
#define vv vector
#define pb push_back
#define ii pair<int,int>

using namespace std;

const int MAXN = 4e5;
int n,m;

vi out[MAXN];
int ctr = 1;
int x[MAXN];
int y[MAXN];

//void answer(vi a,vi b,vi c){
	for(auto e : a)cout << e << " ";cout << endl;
	FOR(i,b.size()){
		cout << b[i] << " " << c[i] << endl;
	}
}

int solve(vi nums){
	if(nums.size() == 1)return nums[0];
	vi lft;vi rght;
	FOR(i,nums.size()){
		if(i%2 == 0){
			lft.pb(nums[i]);
		}else{
			rght.pb(nums[i]);
		}
	}
	int xx = solve(lft);
	int yy = solve(rght);
	x[ctr] = xx;
	y[ctr] = yy;
	ctr++;
	return -(ctr-1);
}

void create_circuit(int m,vi a){
	::m = m;
	n = a.size();
	vi carr;
	FOR(i,n){
		if(i == n-1){
			out[a[i]].pb(0);
		}else{
			out[a[i]].pb(a[i+1]);
		}
	}
	FOR(i,m)reverse(out[i].begin(),out[i].end());
	out[0].pb(a[0]);
	vi outof(m+1);
	FOR(i,m){
		if(out[i].size() == 0){
			outof[i] = 0;
		}else{
			outof[i] = solve(out[i]);
		}
	}
	vi xx;
	vi yy;
	FORE(i,1,ctr-1){
		xx.pb(x[i]);
		yy.pb(y[i]);
	}
	answer(outof,xx,yy);
}


int mai1n(){
	vi all;
	all.pb(1);
	all.pb(2);
	all.pb(1);
	all.pb(3);
	create_circuit(4,all);
	return 0;
}

Compilation message (stderr)

doll.cpp:24:2: error: expected unqualified-id before 'for'
   24 |  for(auto e : a)cout << e << " ";cout << endl;
      |  ^~~
doll.cpp:24:34: error: 'cout' does not name a type; did you mean 'out'?
   24 |  for(auto e : a)cout << e << " ";cout << endl;
      |                                  ^~~~
      |                                  out
doll.cpp:5:18: error: expected unqualified-id before 'for'
    5 | #define FOR(i,n) for(int i = 0;i<n;i++)
      |                  ^~~
doll.cpp:25:2: note: in expansion of macro 'FOR'
   25 |  FOR(i,b.size()){
      |  ^~~
doll.cpp:25:6: error: 'i' does not name a type
   25 |  FOR(i,b.size()){
      |      ^
doll.cpp:5:32: note: in definition of macro 'FOR'
    5 | #define FOR(i,n) for(int i = 0;i<n;i++)
      |                                ^
doll.cpp:25:6: error: 'i' does not name a type
   25 |  FOR(i,b.size()){
      |      ^
doll.cpp:5:36: note: in definition of macro 'FOR'
    5 | #define FOR(i,n) for(int i = 0;i<n;i++)
      |                                    ^
doll.cpp:28:1: error: expected declaration before '}' token
   28 | }
      | ^
doll.cpp: In function 'int solve(std::vector<int>)':
doll.cpp:5:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define FOR(i,n) for(int i = 0;i<n;i++)
......
   33 |  FOR(i,nums.size()){
      |      ~~~~~~~~~~~~~               
doll.cpp:33:2: note: in expansion of macro 'FOR'
   33 |  FOR(i,nums.size()){
      |  ^~~