Compilare: main.cpp: In function 'void options(int (*)[121], int, int, int, int, int, int)': main.cpp:34:32: warning: 's3' may be used uninitialized [-Wmaybe-uninitialized] 34 | else if(choice==3 && s3>min_units)//first column | ~~^~~~~~~~~~ main.cpp:11:15: note: 's3' was declared here 11 | int s1,s2,s3,s4; | ^~ main.cpp:42:32: warning: 's4' may be used uninitialized [-Wmaybe-uninitialized] 42 | else if(choice==4 && s4>min_units)//last column | ~~^~~~~~~~~~ main.cpp:11:18: note: 's4' was declared here 11 | int s1,s2,s3,s4; | ^~ main.cpp:21:27: warning: 's1' may be used uninitialized [-Wmaybe-uninitialized] 21 | if(choice==1 && s1>min_units)//first row | ~~^~~~~~~~~~ main.cpp:11:9: note: 's1' was declared here 11 | int s1,s2,s3,s4; | ^~ main.cpp:29:32: warning: 's2' may be used uninitialized [-Wmaybe-uninitialized] 29 | else if(choice==2 && s2>min_units)//last row | ~~^~~~~~~~~~ main.cpp:11:12: note: 's2' was declared here 11 | int s1,s2,s3,s4; | ^~