Compilare: user.cpp: In function ‘int ct()’: user.cpp:39:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ^ user.cpp:40:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=m;j++) ^ user.cpp:41:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i!=L||j!=C) ^ user.cpp:41:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i!=L||j!=C) ^ user.cpp: In function ‘int main()’: user.cpp:60:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=T;i++) ^ user.cpp:64:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ^ user.cpp:65:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=m;j++) ^ user.cpp:85:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=T;i++) ^ user.cpp:89:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ^ user.cpp:90:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=m;j++) ^