CODING SOLUTION HELP
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#include<stdio.h>
int main()
{
    int n;
    scanf("%d",&n);
    int arr[n];
    for(int i=0;i<n;i++)
    {
        scanf("%d",&arr[i]);
    }
    int count=0;
    int num=arr[0];
    for(int i=1;i<n;i++)
    {
       if(num!=arr[i])
            count++;
    }
    printf("%d",count);
}

C Language
TCS 1st Qsn

---------------------------------------------------------

N=int(input())
K=int(input())
price=list(map(int,input().split()))
vol=list(map(int,input().split()))
maxvol=0
volu=0
maxvol=max(vol)
for i in range(0,N):
    if (maxvol==vol[i] and price[i]<=K):
        K=K-price[i]
        volu=maxvol
for i in range(0,N):
    for j in range(i+1,N+1):
        if (price[i]<=K and price[i]==price[j]):
            if (vol[i]>vol[j]):
                volu=volu+vol[i]
                K=K-price[i]
            else:
                volu=volu+vol[j]
                K=K-price[j]
        elif (price[i]<=K and price[i]!=price[j]):
            K=K-price[i]
            -------

include<stdio.h>
int main()
{
    int n;
    scanf("%d",&n);
    int arr[n];
    for(int i=0;i<n;i++)
    {
        scanf("%d",&arr[i]);
    }
    int count=0;
    int num=arr[0];
    for(int i=1;i<n;i++)
    {
       if(num!=arr[i])
            count++;
    }
    printf("%d",count);
}

Array Code in C language

https://t.me/coding_solution_help
#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <cmath>
#include <algorithm>

using namespace std;

struct Line {
int x1, y1, x2, y2;
};
int countCells(Line line, pair<int, int> star, bool split) {
if (line.x1 == line.x2) {
if (split) {
return min(abs(star.second - line.y1), abs(star.second - line.y2)) + 1;
}
else {
return abs(line.y1 - line.y2) + 1;
}
}
else {
if (split) {
return min(abs(star.first - line.x1), abs(star.first - line.x2)) + 1;
}
else {
return abs(line.x1 - line.x2) + 1;
}
}
}
bool intersects(Line a, Line b, pair<int, int>& intersection) {
if (a.x1 == a.x2 && b.y1 == b.y2) {
if (b.x1 <= a.x1 && a.x1 <= b.x2 && a.y1 <= b.y1 && b.y1 <= a.y2) {
intersection = {a.x1, b.y1};
return true;
}
}
if (a.y1 == a.y2 && b.x1 == b.x2) {
if (a.x1 <= b.x1 && b.x1 <= a.x2 && b.y1 <= a.y1 && a.y1 <= b.y2) {
intersection = {b.x1, a.y1};
return true;
}
}
return false;
}
int main() {
int N, K;
cin >> N;
vector<Line> lines(N);
for (int i = 0; i < N; ++i) {
cin >> lines[i].x1 >> lines[i].y1 >> lines[i].x2 >> lines[i].y2;
if (lines[i].x1 > lines[i].x2 || (lines[i].x1 == lines[i].x2 && lines[i].y1 > lines[i].y2)) {
swap(lines[i].x1, lines[i].x2);
swap(lines[i].y1, lines[i].y2);
}
}
cin >> K;
map<pair<int, int>, vector<Line>> stars;
for (int i = 0; i < N; ++i) {
for (int j = i + 1; j < N; ++j) {
pair<int, int> intersection;
if (intersects(lines[i], lines[j], intersection)) {
stars[intersection].push_back(lines[i]);
stars[intersection].push_back(lines[j]);
}
}
}

int asiylam = 0;
for (auto& star : stars) {
if (star.second.size() / 2 == K) {
vector<int> intensities;
for (auto& line : star.second) {
intensities.push_back(countCells(line, star.first, true));
}
asiylam += *min_element(intensities.begin(), intensities.end());
}
}
cout << asiylam << endl;
return 0;
}

Magic Star Intensity Code
C++
TCS Exam

https://t.me/coding_solution_help
#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <cmath>
#include <algorithm>

using namespace std;

struct Line {
int x1, y1, x2, y2;
};
int countCells(Line line, pair<int, int> star, bool split) {
if (line.x1 == line.x2) {
if (split) {
return min(abs(star.second - line.y1), abs(star.second - line.y2)) + 1;
}
else {
return abs(line.y1 - line.y2) + 1;
}
}
else {
if (split) {
return min(abs(star.first - line.x1), abs(star.first - line.x2)) + 1;
}
else {
return abs(line.x1 - line.x2) + 1;
}
}
}
bool intersects(Line a, Line b, pair<int, int>& intersection) {
if (a.x1 == a.x2 && b.y1 == b.y2) {
if (b.x1 <= a.x1 && a.x1 <= b.x2 && a.y1 <= b.y1 && b.y1 <= a.y2) {
intersection = {a.x1, b.y1};
return true;
}
}
if (a.y1 == a.y2 && b.x1 == b.x2) {
if (a.x1 <= b.x1 && b.x1 <= a.x2 && b.y1 <= a.y1 && a.y1 <= b.y2) {
intersection = {b.x1, a.y1};
return true;
}
}
return false;
}
int main() {
int N, K;
cin >> N;
vector<Line> lines(N);
for (int i = 0; i < N; ++i) {
cin >> lines[i].x1 >> lines[i].y1 >> lines[i].x2 >> lines[i].y2;
if (lines[i].x1 > lines[i].x2 || (lines[i].x1 == lines[i].x2 && lines[i].y1 > lines[i].y2)) {
swap(lines[i].x1, lines[i].x2);
swap(lines[i].y1, lines[i].y2);
}
}
cin >> K;
map<pair<int, int>, vector<Line>> stars;
for (int i = 0; i < N; ++i) {
for (int j = i + 1; j < N; ++j) {
pair<int, int> intersection;
if (intersects(lines[i], lines[j], intersection)) {
stars[intersection].push_back(lines[i]);
stars[intersection].push_back(lines[j]);
}
}
}

int asiylam = 0;
for (auto& star : stars) {
if (star.second.size() / 2 == K) {
vector<int> intensities;
for (auto& line : star.second) {
intensities.push_back(countCells(line, star.first, true));
}
asiylam += *min_element(intensities.begin(), intensities.end());
}
}
cout << asiylam << endl;
return 0;
}

Magic Star Intensity Code
C++
TCS Exam

https://t.me/coding_solution_help
int main() {
string s;
cin >> s;
int n = s.length(), res = 0;
vector<int> v(n);
for (int i = 0; i < n; ++i) cin >> v[i];
int lw = s[0] - '0', lwv = v[0];
for (int i = 1; i < n; ++i) {
if (s[i] - '0' == lw) {
res += min(lwv, v[i]);
lwv = max(lwv, v[i]);
} else {
lw = s[i] - '0';
lwv = v[i];
}
}
cout << res;
return 0;
}
Form alternating string

Change accordingly before submitting to avoid plagiarism
#include <bits/stdc++.h>
using namespace std;

int main() {
int x, y;
cin >> x >> y;
vector<vector<int>> z(x, vector<int>(y));

for (int i = 0; i < x; ++i) {
for (int j = 0; j < y; ++j) {
cin >> z[i][j];
}
}

int w;
cin >> w;

map<int, vector<pair<int, int>>> a;
set<int> b;
for (int i = 0; i < x; ++i) {
for (int j = 0; j < y; ++j) {
int c = z[i][j];
a[c].emplace_back(i, j);
b.insert(c);
}
}

set<int> d;
for (int i = 0; i < x; ++i) {
vector<int> e;
for (int j = 0; j < y; ++j) {
if (z[i][j] == w) {
e.push_back(j);
}
}
if (!e.empty()) {
int f = *max_element(e.begin(), e.end());
for (int j = f + 1; j < y; ++j) {
int g = z[i][j];
if (g != w) {
d.insert(g);
}
}
}
}

set<int> h = b;
d.erase(w);
int i = 0;
for (auto j = d.begin(); j != d.end(); ++j) {
if (h.find(*j) != h.end()) {
h.erase(*j);
i++;
}
}

auto k = [&](const set<int>& l) -> set<int> {
set<int> m;
for (auto& n : l) {
for (auto& [o, p] : a[n]) {
if (o == x - 1) {
m.insert(n);
break;
}
}
}

queue<int> q;
for (auto& r : m) {
q.push(r);
}
while (!q.empty()) {
int s = q.front();
q.pop();
for (auto& t : l) {
if (m.find(t) != m.end()) continue;
bool u = false;
for (auto& [v, w] : a[t]) {
if (v + 1 < x) {
int x = z[v + 1][w];
if (m.find(x) != m.end()) {
u = true;
break;
}
}
}
if (u) {
m.insert(t);
q.push(t);
}
}
}
return m;
};

while (true) {
set<int> y = k(h);
set<int> z;
for (auto& aa : h) {
if (y.find(aa) == y.end()) {
z.insert(aa);
}
}
if (z.empty()) break;
for (auto& bb : z) {
h.erase(bb);
i++;
}
}

cout << i;

return 0;
}



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