Compilare: main.cpp: In function 'int max1(int, int)': main.cpp:10:26: warning: unused variable 's3' [-Wunused-variable] { int s1,s2,max2=10000,t,s3,s4,max3,poz3,poz4,poz5,poz6,i,j,r1,r2; ^~ main.cpp:10:29: warning: unused variable 's4' [-Wunused-variable] { int s1,s2,max2=10000,t,s3,s4,max3,poz3,poz4,poz5,poz6,i,j,r1,r2; ^~ main.cpp:10:32: warning: unused variable 'max3' [-Wunused-variable] { int s1,s2,max2=10000,t,s3,s4,max3,poz3,poz4,poz5,poz6,i,j,r1,r2; ^~~~ main.cpp:10:37: warning: unused variable 'poz3' [-Wunused-variable] { int s1,s2,max2=10000,t,s3,s4,max3,poz3,poz4,poz5,poz6,i,j,r1,r2; ^~~~ main.cpp:10:42: warning: unused variable 'poz4' [-Wunused-variable] { int s1,s2,max2=10000,t,s3,s4,max3,poz3,poz4,poz5,poz6,i,j,r1,r2; ^~~~ main.cpp:10:47: warning: unused variable 'poz5' [-Wunused-variable] { int s1,s2,max2=10000,t,s3,s4,max3,poz3,poz4,poz5,poz6,i,j,r1,r2; ^~~~ main.cpp:10:52: warning: unused variable 'poz6' [-Wunused-variable] { int s1,s2,max2=10000,t,s3,s4,max3,poz3,poz4,poz5,poz6,i,j,r1,r2; ^~~~ main.cpp: In function 'int main()': main.cpp:54:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^ main.cpp:60:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i][j]); ^ main.cpp: In function 'int ma3(int, int, int (*)[1001])': main.cpp:50:12: warning: 'n' may be used uninitialized in this function [-Wmaybe-uninitialized] return n; ^ main.cpp: In function 'int main()': main.cpp:41:13: warning: 'n' may be used uninitialized in this function [-Wmaybe-uninitialized] int i,j,n; ^