Submission #700867

#	Time	Username	Problem	Language	Result	Execution time	Memory
700867		Doncho_Bonboncho	Paint By Numbers (IOI16_paint)	C++14	7 / 100	1 ms	340 KiB

paint

#include "paint.h"
#include <bits/stdc++.h>
#include <cstdlib>

int pref[128];
	
std::string nas = "";

void f( int l, int r, int n ){
	int size = r - l + 1;
//	std::cerr<<" ! "<<size<<" "<<n<<"\n";
	for( int i=0 ; i < size - n ; i++ ) nas[l+i] = nas[r-i] = '?';
}

std::string solve_puzzle(std::string s, std::vector<int> c) {

	for( int i=0 ; i<s.size() ; i++ ) nas += 'X';

	for( int i=0 ; i<c.size() ; i++ ) pref[i] = ( i ? pref[i-1] : 0 ) + c[i];

	/*
	std::cerr<<"\n";
	for( int i=0 ; i<c.size() ; i++ ) std::cerr<<pref[i]<<"\n";
	std::cerr<<"\n";
	*/

	for( int i=0 ; i <c.size() ; i++ ){
		int l = ( i ? pref[i-1] + i : 0 );
		int r = s.size() - ( pref[c.size()-1]-pref[i] + c.size() - i -1 )-1;
	//	std::cerr<<s.size()<<" - ( "<<pref[c.size()-1]<<" - "<<pref[i]<<" + "<<c.size()<<" - "<<i<<" - "<<1<<")\n";
	//	std::cerr<<l<<" "<<r<<" , "<<c[i]<<"\n";
		f( l, r, c[i] );
	}

    return nas;
}

Compilation message (stderr)

paint.cpp: In function 'std::string solve_puzzle(std::string, std::vector<int>)':
paint.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  for( int i=0 ; i<s.size() ; i++ ) nas += 'X';
      |                 ~^~~~~~~~~
paint.cpp:19:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  for( int i=0 ; i<c.size() ; i++ ) pref[i] = ( i ? pref[i-1] : 0 ) + c[i];
      |                 ~^~~~~~~~~
paint.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  for( int i=0 ; i <c.size() ; i++ ){
      |                 ~~^~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 3
• Subtask 3: 0 / 22
• Subtask 4: 0 / 27
• Subtask 5: 0 / 21
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10