Submission #314871

#	Time	Username	Problem	Language	Result	Execution time	Memory
314871		kostia244	Packing Biscuits (IOI20_biscuits)	C++17	Compilation error	0 ms	0 KiB

biscuits

#include "biscuits.h"
#include<bits/stdc++.h>
#define all(x) begin(x), end(x)
using namespace std;
using ll = long long;
const int B = 126;
vector<ll> convert(__int128 x) {
	vector<ll> a(B);
	for(int i = 0; i < B; i++) a[i] += x&1, x/=2;
	return a;
}
ll count_tastiness(ll x, vector<ll> a) {
	__int128 k = 0;
	a.resize(B);
	vector<vector<ll>> con;
	for(int i = 0; i < B; i++) {
		k += __int128(a[i])<<i;
		if((k/x) < (__int128(2)<<i))
			con.push_back(convert(k/x));
	}
	for(auto &i : con) reverse(all(i));
	ll dp[128][128];
	memset(dp, 0, sizeof dp);
	dp[0][con.size()] = 1;
	for(int i = 0; i < B; i++) {
		for(int j = 0; j <= con.size(); j++) {
			//if(dp[i][j]) cout << i << " " << j << " " << dp[i][j] << endl;
			int tj = j;
			while(tj && con[tj-1][i] == 1) tj--;
			dp[i+1][tj] += dp[i][j];//place 0
			int can1 = 1;
			for(int k = B-i-1; k < j; k++) can1 &= con[k][i] == 1;
			if(can1) dp[i+1][j] += dp[i][j];
		}
	}
	ll ans = 0;
	for(int i = 0; i <= con.size(); i++) ans += dp[B][i];
	return ans;
}

#include "biscuits.h"
#include<bits/stdc++.h>
#define all(x) begin(x), end(x)
using namespace std;
using ll = long long;
const int B = 126;
vector<ll> convert(__int128 x) {
	vector<ll> a(B);
	for(int i = 0; i < B; i++) a[i] += x&1, x/=2;
	return a;
}
ll count_tastiness(ll x, vector<ll> a) {
	__int128 k = 0;
	a.resize(B);
	vector<vector<ll>> con;
	for(int i = 0; i < B; i++) {
		k += __int128(a[i])<<i;
		if((k/x) < (__int128(2)<<i))
			con.push_back(convert(k/x));
	}
	for(auto &i : con) reverse(all(i));
	ll dp[128][128];
	memset(dp, 0, sizeof dp);
	dp[0][con.size()] = 1;
	for(int i = 0; i < B; i++) {
		for(int j = 0; j <= con.size(); j++) {
			//if(dp[i][j]) cout << i << " " << j << " " << dp[i][j] << endl;
			int tj = j;
			while(tj && con[tj-1][i] == 1) tj--;
			dp[i+1][tj] += dp[i][j];//place 0
			int can1 = 1;
			for(int k = B-i-1; k < j; k++) can1 &= con[k][i] == 1;
			if(can1) dp[i+1][j] += dp[i][j];
		}
	}
	ll ans = 0;
	for(int i = 0; i <= con.size(); i++) ans += dp[B][i];
	return ans;
}

Compilation message (stderr)

biscuits.cpp: In function 'll count_tastiness(ll, std::vector<long long int>)':
biscuits.cpp:26:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |   for(int j = 0; j <= con.size(); j++) {
      |                  ~~^~~~~~~~~~~~~
biscuits.cpp:37:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |  for(int i = 0; i <= con.size(); i++) ans += dp[B][i];
      |                 ~~^~~~~~~~~~~~~
biscuits.cpp: At global scope:
biscuits.cpp:46:11: error: redefinition of 'const int B'
   46 | const int B = 126;
      |           ^
biscuits.cpp:6:11: note: 'const int B' previously defined here
    6 | const int B = 126;
      |           ^
biscuits.cpp:47:12: error: redefinition of 'std::vector<long long int> convert(__int128)'
   47 | vector<ll> convert(__int128 x) {
      |            ^~~~~~~
biscuits.cpp:7:12: note: 'std::vector<long long int> convert(__int128)' previously defined here
    7 | vector<ll> convert(__int128 x) {
      |            ^~~~~~~
biscuits.cpp:52:4: error: redefinition of 'll count_tastiness(ll, std::vector<long long int>)'
   52 | ll count_tastiness(ll x, vector<ll> a) {
      |    ^~~~~~~~~~~~~~~
biscuits.cpp:12:4: note: 'long long int count_tastiness(long long int, std::vector<long long int>)' previously defined here
   12 | ll count_tastiness(ll x, vector<ll> a) {
      |    ^~~~~~~~~~~~~~~
biscuits.cpp: In function 'll count_tastiness(ll, std::vector<long long int>)':
biscuits.cpp:66:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |   for(int j = 0; j <= con.size(); j++) {
      |                  ~~^~~~~~~~~~~~~
biscuits.cpp:77:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |  for(int i = 0; i <= con.size(); i++) ans += dp[B][i];
      |                 ~~^~~~~~~~~~~~~