| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 919954 |
2024-02-01T23:48:25 Z |
Lobo |
Parrots (IOI11_parrots) |
C++17 |
|
0 ms |
0 KB |
#include "encoder.h"
#include "encoderlib.h"
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
#define fr first
#define sc second
// #define int long long
// const int maxn = 1e5+10;
// const int inf = 1e18+10;
static vector<int> maxt;
static int R;
static int k;
bool geq(vector<int> s, vector<int> t) {
if(s.size() > t.size()) return 1;
if(t.size() > s.size()) return 0;
for(int i = (int) s.size() -1; i >= 0; i--) {
if(s[i] > t[i]) return 1;
if(t[i] > s[i]) return 0;
}
return 1;
}
vector<int> mult(vector<int> s, vector<int> t) {
vector<int> ans((int) s.size()+(int) t.size(),0);
if(s == vector<int>{0} or t == vector<int>{0}) return vector<int>{0};
for(int i = 0; i < s.size(); i++) {
for(int j = 0; j < t.size(); j++) {
ans[i+j]+= s[i]*t[j];
}
}
for(int i = 0; i < ans.size(); i++) {
if(ans[i] >= 10) {
if(i+1 == (int) ans.size()) ans.pb(0);
ans[i+1]+= ans[i]/10;
ans[i]%= 10;
}
}
while(ans.size() > 1 && ans.back() == 0) ans.pop_back();
if(geq(ans,maxt)) return maxt;
return ans;
}
vector<int> add(vector<int> s, vector<int> t) {
vector<int> ans = s;
for(int i = 0; i < t.size(); i++) {
if(i == (int) ans.size()) ans.pb(0);
ans[i]+= t[i];
}
for(int i = 0; i < ans.size(); i++) {
if(ans[i] >= 10) {
if(i+1 == (int) ans.size()) ans.pb(0);
ans[i+1]+= ans[i]/10;
ans[i]%= 10;
}
}
while(ans.size() > 1 && ans.back() == 0) ans.pop_back();
if(geq(ans,maxt)) return maxt;
return ans;
}
vector<int> trans(int x) {
if(x == 0) return vector<int>{0};
vector<int> ans;
while(x != 0) {
ans.pb(x%10);
x/= 10;
}
return ans;
}
int transback(vector<int> s) {
int ans = 0;
int p10 = 1;
for(int i = 0; i < s.size(); i++) {
ans+= p10*s[i];
p10*= 10;
}
return ans;
}
vector<int> dp[260][10*64+10];
void precomp() {
maxt.pb(1);
for(int i = 0; i <= 77; i++) {
maxt.pb(0);
}
// dp(i,sum) = # de (q_0,q_1,...,q_i) tal que a soma é no maximo sum
for(int i = 0; i < R; i++) {
for(int j = 0; j <= k; j++) {
dp[i][j] = vector<int>{0};
}
}
for(int j = 0; j <= k; j++) {
dp[0][j] = trans(j+1);
}
for(int i = 1; i < R; i++) {
dp[i][0] = trans(1);
for(int j = 1; j <= k; j++) {
for(int x = 0; x <= j; x++) {
dp[i][j] = add(dp[i][j],dp[i-1][j-x]);
}
}
}
}
vector<int> querysmaller(vector<int> q) {
vector<int> ans = {0};
int sumq = 0;
for(int i = R-1; i >= 0; i--) {
for(int j = 0; j <= q[i]-1 && k-j-sumq >= 0; j++) {
if(i == 0) ans = add(ans,trans((int)1));
else ans = add(ans,dp[i-1][k-j-sumq]);
}
sumq+= q[i];
}
if(sumq <= k) ans = add(ans,trans(1));
return ans;
}
vector<int> findg(vector<int> g) {
vector<int> ans(R,0);
int sumans = 0;
for(int i = R-1; i >= 0; i--) {
ans[i] = 0;
for(int j = 1; j+sumans <= k; j++) {
ans[i] = j;
if(!(geq(g,querysmaller(ans)))) {
ans[i] = j-1;
break;
}
}
sumans+= ans[i];
}
return ans;
}
void encode(int32_t n, int32_t m[])
{
k = 10*n;
R = 100;
precomp();
vector<int> vm = trans(0);
vector<int> p256 = trans(1);
for(int i = 0; i < n; i++) {
vm = add(vm,mult(p256,trans(m[i])));
p256 = mult(p256,trans(256));
}
vector<int> ans = findg(add(vm,trans(1)));
for(int i = 0; i < ans.size(); i++) {
for(int j = 0; j < ans[i]; j++) {
send(i);
}
}
}
Compilation message
encoder.cpp: In function 'std::vector<int> mult(std::vector<int>, std::vector<int>)':
encoder.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
31 | for(int i = 0; i < s.size(); i++) {
| ~~^~~~~~~~~~
encoder.cpp:32:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
32 | for(int j = 0; j < t.size(); j++) {
| ~~^~~~~~~~~~
encoder.cpp:37:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
37 | for(int i = 0; i < ans.size(); i++) {
| ~~^~~~~~~~~~~~
encoder.cpp: In function 'std::vector<int> add(std::vector<int>, std::vector<int>)':
encoder.cpp:52:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
52 | for(int i = 0; i < t.size(); i++) {
| ~~^~~~~~~~~~
encoder.cpp:57:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
57 | for(int i = 0; i < ans.size(); i++) {
| ~~^~~~~~~~~~~~
encoder.cpp: In function 'int transback(std::vector<int>)':
encoder.cpp:83:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
83 | for(int i = 0; i < s.size(); i++) {
| ~~^~~~~~~~~~
encoder.cpp: In function 'void encode(int32_t, int32_t*)':
encoder.cpp:168:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
168 | for(int i = 0; i < ans.size(); i++) {
| ~~^~~~~~~~~~~~
/usr/bin/ld: /tmp/ccEKyG1f.o: in function `main':
grader_decoder.cpp:(.text.startup+0x1ef): undefined reference to `decode(int, int, int*)'
collect2: error: ld returned 1 exit status
