Compilare: main.cpp: In function 'void Fill(int, int)': main.cpp:39:30: warning: iteration 3 invokes undefined behavior [-Waggressive-loop-optimizations] 39 | if( !zona[ i + dl[ k ] ][ j + dc[ k ] ] && a[ i ][ j ] == a[ i + dl[ k ] ][ j + dc[ k ] ] ) | ~~~~~~^ main.cpp:38:23: note: within this loop 38 | for( int k = 0; k < 4; k++ ) | ~~^~~ main.cpp: In function 'int main()': main.cpp:70:48: warning: iteration 3 invokes undefined behavior [-Waggressive-loop-optimizations] 70 | a[ i ][ j ] = a[ i + dl[ k ] ][ j + dc[ k ] ]; | ~~~~~~^ main.cpp:68:35: note: within this loop 68 | for( int k = 0; k < 4; k++ ) { | ~~^~~ main.cpp:72:50: warning: iteration 3 invokes undefined behavior [-Waggressive-loop-optimizations] 72 | if( !ok[ zona[ i + dl[ l ] ][ j + dc[ l ] ] ] && a[ i ][ j ] == a[ i + dl[ l ] ][ j + dc[ l ] ] ) { | ~~~~~~^ main.cpp:71:39: note: within this loop 71 | for( int l = 0; l < 4; l++ ) | ~~^~~ main.cpp:88:45: warning: iteration 3 invokes undefined behavior [-Waggressive-loop-optimizations] 88 | ok[ zona[ i + dl[ d ] ][ j + dc[ d ] ] ] = 0; | ~~~~~~^ main.cpp:87:39: note: within this loop 87 | for( int d = 0; d < 4; d++ ) | ~~^~~ main.cpp:93:16: warning: 'col' may be used uninitialized in this function [-Wmaybe-uninitialized] 93 | fprintf( fout, "%d %d\n%c\n", lin, col, cu ); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:93:16: warning: 'lin' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:93:16: warning: 'cu' may be used uninitialized in this function [-Wmaybe-uninitialized]