Sponsors

Codeforces Round #380 (Div. 1, Rated, Based on Technocup 2017 – Elimination Round 2), problem: (E) Tanya is 5! Solution in C/C++

Hi Guys , I Just Tried to solve the Tanya is 5! problem , hope you might like it , please share if you’ve any better code .

 

 

#include <bits/stdc++.h>
#define time privet
#define F first
#define S second

using namespace std;
typedef long double ld;

const int max_n = 42, max_m = 11, max_q = 9, mod = 1000000007, max_log = 20, inf = 1011111111;
const ld eps = 1e-7;

int n, m, b, x[max_n][max_m * 2], cost[max_m], sum[2][max_n + max_m * 2], T, true_m, used1[max_m], used[max_n + max_m * 2], time, ptr[max_m * 2];
vector<pair<pair<int, int>, pair<int, int> > > ans;
pair<int, int> p[max_n + max_m * 2];
vector<pair<int, int> > v[max_n + max_m * 2];

void get_T() {
T = 0;
for (int i = 0; i < n; ++i) {
int sm = 0;
for (int q = 0; q < m; ++q) {
sm += x[i][q];
}
T = max(T, sm);
}
for (int i = 0; i < m; ++i) {
int sm = 0;
for (int q = 0; q < n; ++q) {
sm += x[q][i];
}
T = max(T, sm);
}
}
vector<int> is_exist() {
vector<int> ans;
int res = 0;
for (int i = 0; i < n; ++i) {
int sm = 0;
for (int q = 0; q < m; ++q) {
sm += x[i][q];
}
if (sm == T) return ans;
}
for (int q = 0; q < true_m; ++q) if (!used1[q]){
int sm = 0;
for (int i = 0; i < n; ++i) {
sm += x[i][q];
}
if (sm == T) {
res += cost[q];
ans.push_back(q);
}
}
if (res <= b) {
b -= res;
for (int i = 0; i < ans.size(); ++i) {
used1[ans[i]] = 1;
}
return ans;
}
ans.clear();
return ans;
}
void get_automates() {
get_T();
vector<int> adds = is_exist();
while (adds.size()) {
for (int i = 0; i < adds.size(); ++i) {
int razn = sum[1][adds[i]];
for (int q = v[adds[i]].size() – 1; razn >= v[adds[i]][q].S * 2; –q) {
razn -= v[adds[i]].back().S * 2;
v[m].push_back(v[adds[i]][q]);
sum[1][adds[i]] -= v[m].back().S;
sum[1][m] += v[m].back().S;
swap(x[v[m].back().F][m], x[v[m].back().F][adds[i]]);
v[adds[i]].pop_back();
}
if (razn > 1) {
razn /= 2;
v[m].push_back(make_pair(v[adds[i]].back().F, razn));
v[adds[i]].back().S -= razn;
sum[1][adds[i]] -= razn;
sum[1][m] += razn;
x[v[m].back().F][m] += razn;
x[v[m].back().F][adds[i]] -= razn;
}

ptr[m] = adds[i];
m++;
}
get_T();
adds = is_exist();
}
}
void add_graphs() {
for (int i = 0; i < n; ++i) {
if (sum[0][i] != T) {
v[m + i].push_back(make_pair(i, T – sum[0][i]));
sum[1][m + i] = T – sum[0][i];
sum[0][i] = T;
}
}
for (int i = 0; i < m; ++i) {
if (sum[1][i] != T) {
v[i].push_back(make_pair(n + i, T – sum[1][i]));
sum[0][n + i] = T – sum[1][i];
sum[1][i] = T;
}
}

int i, q;
i = q = n + m – 1;
while (i > n – 1 || q > m – 1) {
if (sum[0][i] == T) {i–; continue;}
if (sum[1][q] == T) {q–; continue;}
int razn = T – max(sum[0][i], sum[1][q]);
//cout << i << ” ” << q << ” ” << razn << “\n”;
sum[0][i] += razn;
sum[1][q] += razn;
v[q].push_back(make_pair(i, razn));
}
}

bool dfs(int x) {
if (used[x]) return false;
used[x] = 1;

for (int i = 0; i < v[x].size(); ++i) {
int to = v[x][i].F;
if (p[to].F == -1 || dfs(p[to].F)) {
p[to] = make_pair(x, i);
return true;
}
}

return false;
}
void get_pairs() {
for (int i = 0; i < n + m; ++i) {
p[i] = make_pair(-1, -1);
}
for (int i = 0; i < n + m; ++i) {
memset(used, 0, sizeof(used));
dfs(i);
}
}

bool is_good() {
for (int i = 0; i < n + m; ++i) if (v[i].size()) return true;
return false;
}
void get_ans() {
while (is_good()) {
get_pairs();
int mn = inf;
for (int i = 0; i < n + m; ++i) {
mn = min(mn, v[p[i].F][p[i].S].S);
}
for (int i = 0; i < n + m; ++i) {
if (i < n && p[i].F < m) {
ans.push_back(make_pair(make_pair(i, ptr[p[i].F]), make_pair(time, mn)));
}
v[p[i].F][p[i].S].S -= mn;
if (v[p[i].F][p[i].S].S == 0) {
v[p[i].F].erase(v[p[i].F].begin() + p[i].S);
}
}
time += mn;
}
}

int main() {
//freopen(“input.txt”, “r”, stdin);
//freopen(“output.txt”, “w”, stdout);
//freopen(“basis.in”, “r”, stdin);
//freopen(“basis.out”, “w”, stdout);
cin >> n >> m >> b;
true_m = m;
for (int i = 0; i < m; ++i) {
scanf(“%d”, &cost[i]);
ptr[i] = i;
}
for (int i = 0; i < n; ++i) {
int k, y, g;
scanf(“%d”, &k);
for (int q = 0; q < k; ++q) {
scanf(“%d%d”, &y, &g);
y–;
x[i][y] = g;
v[y].push_back(make_pair(i, g));
sum[0][i] += g;
sum[1][y] += g;
}
}
get_automates();
add_graphs();
get_ans();

cout << time << “\n”;
for (int i = 0; i < true_m; ++i) {
if (used1[i]) {
cout << “1”;
} else {
cout << “0”;
}
}
cout << “\n” << ans.size() << “\n”;
for (int i = 0; i < ans.size(); ++i) {
cout << ans[i].F.F + 1 << ” ” << ans[i].F.S + 1 << ” ” << ans[i].S.F << ” ” << ans[i].S.S << “\n”;
}
}

FG bans cash tax...

Nigeria Bans Cash Tax Collections and Revenue Roadblocks to...

Iran vs US-Israel war:...

Understanding the Legal Implications of Targeted Strikes on Sovereign...

Sloane Stephens reveals Indian...

Sloane Stephens Unveils Stylish New Look for 'Tennis Paradise'...

Shahed drone meets clone...

The Dawn of the Clone: US LUCAS Drone Debuts...

Gold loans grow 128%,...

Gold Loans Witness Explosive 128% Growth as Outstandings Surpass...

Lottery Unlocked 2026: AI...

Lottery Unlocked 2026: A Deep Dive into AI Accuracy...

FG bans cash tax collections, revenue roadblocks

Nigeria Bans Cash Tax Collections and Revenue Roadblocks to Boost Transparency In a landmark move aimed at modernizing the nation’s fiscal operations, the Federal Government...

Iran vs US-Israel war: The legality, or illegality, of killing a foreign leader, explained

Understanding the Legal Implications of Targeted Strikes on Sovereign LeadersThe geopolitical landscape of the Middle East has been thrust into unprecedented turmoil following reports...

Sloane Stephens reveals Indian Wells kit

Sloane Stephens Unveils Stylish New Look for 'Tennis Paradise' at Indian Wells As the tennis world prepares for one of the most prestigious stops on...

Shahed drone meets clone in US war on Iran

The Dawn of the Clone: US LUCAS Drone Debuts in CombatThe landscape of modern warfare shifted significantly on February 28th during a series of...

Gold loans grow 128%, outstandings cross 4 lakh crore

Gold Loans Witness Explosive 128% Growth as Outstandings Surpass ₹4 Lakh Crore India's financial landscape is witnessing a dramatic surge in gold-backed lending, signaling a...

Lottery Unlocked 2026: AI Accuracy Claims Examined, Pricing Verified, and What Consumers Should Confirm Before Buying

Lottery Unlocked 2026: A Deep Dive into AI Accuracy and Pricing ClaimsThe intersection of artificial intelligence and the lottery industry has reached a new...

How to be proactive about cancer prevention

Taking Charge: How to be Proactive About Cancer Prevention Every year, millions of families are affected by cancer, yet a startling statistic offers a glimmer...

Workday’s stock slumps again on weak guidance and AI disruption fears

Workday Shares Plunge as Future Outlook Dims Amid AI Concerns Workday Inc. (WDAY), a long-standing leader in the enterprise cloud applications market for finance and...

Milan Cortina Olympics Attracts 23.5 Million Viewers Across NBCUniversal and Versant Outlets, Best Winter Games Since 2014

Milan Cortina Olympics Sees Record-Breaking Viewership and PerformanceThe Milan Cortina Winter Olympics have officially concluded, leaving a lasting impact on both sports history and...