Compilare: user.cpp: In function ‘long int findMaxSum(long int*, long int*)’: user.cpp:63:28: warning: variable ‘finalLeft’ set but not used [-Wunused-but-set-variable] long maxSum = INT_MIN, finalLeft, finalRight, finalTop, finalBottom; ^ user.cpp:63:39: warning: variable ‘finalRight’ set but not used [-Wunused-but-set-variable] long maxSum = INT_MIN, finalLeft, finalRight, finalTop, finalBottom; ^ user.cpp:63:51: warning: variable ‘finalTop’ set but not used [-Wunused-but-set-variable] long maxSum = INT_MIN, finalLeft, finalRight, finalTop, finalBottom; ^ user.cpp:63:61: warning: variable ‘finalBottom’ set but not used [-Wunused-but-set-variable] long maxSum = INT_MIN, finalLeft, finalRight, finalTop, finalBottom; ^ user.cpp: In function ‘int main()’: user.cpp:112:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fileIn, "%ld%ld", &ROW, &COL); ^ user.cpp:114:61: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (long i = 0; i < ROW; i++) fscanf(fileIn, "%ld", &A[i]); ^ user.cpp:115:61: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (long i = 0; i < COL; i++) fscanf(fileIn, "%ld", &B[i]); ^