Submission #482392

#	Time	Username	Problem	Language	Result	Execution time	Memory
482392		HoangVu	Quality Of Living (IOI10_quality)	C++14	Compilation error	0 ms	0 KiB

quality

#include <bits/stdc++.h>

using namespace std;

//ifstream f1("test.inp");
//ofstream f2("test.out");
//#define cin f1
//#define cout f2

inline void in(int &x) // fast input
{
    x = 0; long long f = 1;
    char ch = getchar();
    while (!isdigit(ch)) f = ch == '-' ? - f : f, ch = getchar();
    while (isdigit(ch)) x = x * 10 + ch - '0', ch = getchar();
    x *= f;
}
inline void out(int _x){
    char _str[16];
    long long _i=0;
    if (_x==0) putchar('0');
    else{
    while (_x>0){ _str[_i++]=(_x%10)+'0'; _x=_x/10; }
    while (_i) putchar(_str[--_i]); }
    putchar('\n');
}

int numRow, numColumn, a[3005][3005], H, W;
int x[3005][3005], pref[3005][3005];

int getValue(int x, int y, int u, int v) {
    return pref[u][v] - pref[x - 1][v] - pref[u][y - 1] + pref[x - 1][y - 1];
}

bool ok(int need) {
    for (int i = 1; i <= numRow; i++) {
        for (int j = 1; j <= numColumn; j++) {
            if (a[i][j] >= need) pref[i][j] = pref[i - 1][j] + pref[i][j - 1] - pref[i - 1][j - 1] + 1;
            else pref[i][j] = pref[i - 1][j] + pref[i][j - 1] - pref[i - 1][j - 1] - 1;
        }
    }
    for (int i = 1; i + H - 1 <= numRow; i++)
        for (int j = 1; j + W - 1 <= numColumn; j++)
            if (getValue(i, j, i + H - 1, j + W - 1) > 0)
                return true;
    return false;
}

void solve() {
    in(numRow), in(numColumn), in(H), in(W);
    //cin >> numRow >> numColumn >> H >> W;
    for (int i = 1; i <= numRow; i++)
        for (int j = 1; j <= numColumn; j++)
            in(a[i][j]);
    int L = 1, R = numRow * numColumn;
    while (L <= R) {
        int mid = (L + R) >> 1;
        if (ok(mid)) L = mid + 1;
        else R = mid - 1;
    }
    cout << --L;
}

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
	solve();
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cc0ACmaD.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc0ngB4C.o:quality.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cc0ACmaD.o: in function `main':
grader.cpp:(.text.startup+0xe9): undefined reference to `rectangle(int, int, int, int, int (*) [3001])'
collect2: error: ld returned 1 exit status