Compilare: user.cpp: In function ‘int caz4(int, int, int, int, int)’: user.cpp:86:37: warning: for increment expression has no effect [-Wunused-value] for(int j=js;j<=is+js-i;j) ^ user.cpp: In function ‘int main()’: user.cpp:124:13: warning: unused variable ‘nrp’ [-Wunused-variable] int nrp=0,nrb=0; ^ user.cpp:124:19: warning: unused variable ‘nrb’ [-Wunused-variable] int nrp=0,nrb=0; ^ user.cpp:105:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elicop.in","r",stdin); ^ user.cpp:106:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elicop.out","w",stdout); ^ user.cpp:108:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&m,&n); ^ user.cpp:114:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^ user.cpp:118:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&k); ^ user.cpp:123:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d %d",&is,&js,&ij,&jj,&p); ^