Submission #542979

#	Time	Username	Problem	Language	Result	Execution time	Memory
542979		nayhz	Art Class (IOI13_artclass)	C++17	Compilation error	0 ms	0 KiB

artclass

#include "artclass.h"

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
    int total = H * (W - 1);

    for (int i = 0; i < H; i++) {
        for (int j = 0; j < W - 1; j++) {
            one++;
            change += abs(R[i][j] - R[i][j + 1]);
            change += abs(G[i][j] - G[i][j + 1]);
            change += abs(B[i][j] - B[i][j + 1]);
        }
    }
    change /= total;

    if (change <= 10) return 4;
    else if (change <= 20) return 1;
    else if (change >= 150) return 2;
    else return 3;
}

Compilation message (stderr)

artclass.cpp: In function 'int style(int, int, int (*)[500], int (*)[500], int (*)[500])':
artclass.cpp:8:13: error: 'one' was not declared in this scope
    8 |             one++;
      |             ^~~
artclass.cpp:9:13: error: 'change' was not declared in this scope
    9 |             change += abs(R[i][j] - R[i][j + 1]);
      |             ^~~~~~
artclass.cpp:9:23: error: 'abs' was not declared in this scope
    9 |             change += abs(R[i][j] - R[i][j + 1]);
      |                       ^~~
artclass.cpp:14:5: error: 'change' was not declared in this scope
   14 |     change /= total;
      |     ^~~~~~
artclass.cpp:20:1: warning: control reaches end of non-void function [-Wreturn-type]
   20 | }
      | ^