Compilare: main.c: In function 'readMatrix': main.c:6:10: warning: unused variable 'j' [-Wunused-variable] 6 | int i, j; | ^ main.c:6:7: warning: unused variable 'i' [-Wunused-variable] 6 | int i, j; | ^ main.c: In function 'minimCollumn': main.c:22:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 22 | for (j = 0; j < n; ++j) | ^~~ main.c:25:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 25 | if(sum < minimcoloana) | ^~ main.c:19:43: warning: 'indice' may be used uninitialized in this function [-Wmaybe-uninitialized] 19 | int i , j , minimcoloana=100 , sum = 0, indice; | ^~~~~~ main.c: In function 'minimLine': main.c:52:21: warning: 'indice' may be used uninitialized in this function [-Wmaybe-uninitialized] 52 | a[indice][j] = a[indice][j]*(-1); | ^