Compilare: main.cpp: In function 'int main()': main.cpp:19:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ main.cpp:22:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a[i][j]); ^ main.cpp: In function 'void marcheaza(int, int, int)': main.cpp:5:27: warning: 'i' is used uninitialized in this function [-Wuninitialized] while(!marcat[i][c+tip]){ ~~~~~~~~~~~~~~~^ main.cpp: In function 'int main()': main.cpp:4:9: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized] int i, j; ^ main.cpp:4:9: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]