Compilare: main.c: In function 'generate_lin': main.c:8:16: warning: implicit declaration of function 'generate_col' [-Wimplicit-function-declaration] return generate_col(0); ^~~~~~~~~~~~ main.c: In function 'generate_col': main.c:17:16: warning: implicit declaration of function 'suma' [-Wimplicit-function-declaration] return suma(); ^~~~ main.c: In function 'suma': main.c:33:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.c: In function 'main': main.c:40:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&n,&m); ^~~~~~~~~~~~~~~~~~~~~~~ main.c:43:13: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&mat[i][j]); ^~~~~~~~~~~~~~~~~~~~~~~~~~