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#include <stdio.h> #include <stdlib.h> double oddAvg( int** tab, int n, int m ) { int sum = 0; int count = 0; for( int i = 1; i < n; i += 2 ) { for( int j = 1; j < m; j += 2 ) { sum += tab[ i ][ j ]; ++count; } } if( count == 0 ) { return 0; } return ( double )sum / count; } int main() { int n = 4; int m = 4; int** tab = ( int** )malloc( n * sizeof( int* ) ); for( int i = 0; i < n; ++i ) { tab[ i ] = ( int* )malloc( m * sizeof( int ) ); } int counter = 1; for( int i = 0; i < n; ++i ) { for( int j = 0; j < m; ++j ) { tab[ i ][ j ] = counter; ++counter; } } printf( "Tablica:\n" ); for( int i = 0; i < n; ++i ) { for( int j = 0; j < m; ++j ) { printf( "%d ", tab[ i ][ j ] ); } printf("\n"); } double result = oddAvg( tab, n, m ); printf( "Srednia elementow na nieparzystych indeksach: %f\n", result ); for( int i = 0; i < n; ++i ) { free( tab[ i ] ); } free( tab ); return 0; }
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