Eroare de compilare: main.cpp: In function 'int main()': main.cpp:44:20: error: 'si' was not declared in this scope fscanf(si,"%d",&a[i][j]); ^~ main.cpp:38:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("balans.in","r",stdin); ^ main.cpp:39:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("balans.out","w",stdout); ^ main.cpp:40:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d",&n,&m,&r,&c); ^ Non zero exit status: 1