Compilare: user.cpp: In function ‘int main()’: user.cpp:11:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &nrlin, &nrcol); ^ user.cpp:12:80: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1; i<=nrlin; i++) for(j=1; j<=nrcol; j++) fscanf(fin, "%d", &s[i][j]); ^ user.cpp:80:5: warning: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Wstrict-overflow] for(c1=2; c2<nrcol; c2++){ ^